Alternative nucleic acid molecules and uses thereof

ABSTRACT

The present disclosure provides alternative nucleosides, nucleotides, and nucleic acids, and methods of using them.

REFERENCE TO A SEQUENCE LISTING

This application contains a Sequence Listing in computer readable form. The computer readable form is incorporated herein by reference.

TECHNICAL FIELD

The present disclosure provides compositions and methods using alternative nucleic acids to modulate cellular function. The alternative nucleic acids of the invention may encode peptides, polypeptides or multiple proteins. The encoded molecules may be used as therapeutics and/or diagnostics.

BACKGROUND OF THE INVENTION

There are multiple problems with prior methodologies of effecting protein expression. For example, heterologous DNA introduced into a cell can be inherited by daughter cells (whether or not the heterologous DNA has integrated into the chromosome) or by offspring. Introduced DNA can integrate into host cell genomic DNA at some frequency, resulting in alterations and/or damage to the host cell genomic DNA. In addition, multiple steps must occur before a protein is made. Once inside the cell, DNA must be transported into the nucleus where it is transcribed into RNA. The RNA transcribed from DNA must then enter the cytoplasm where it is translated into protein. This need for multiple processing steps creates lag times before the generation of a protein of interest. Further, it is difficult to obtain DNA expression in cells; frequently DNA enters cells but is not expressed or not expressed at reasonable rates or concentrations. This can be a particular problem when DNA is introduced into cells such as primary cells or modified cell lines.

Naturally occurring RNAs are synthesized from four basic ribonucleotides: ATP, CTP, UTP and GTP, but may contain post-transcriptionally modified nucleotides. Further, approximately one hundred different nucleoside alterations have been identified in RNA (Rozenski, J, Crain, P, and McCloskey, J. (1999). The RNA Modification Database: 1999 update. Nucl Acids Res 27: 196-197).

There is a need in the art for biological modalities to address the modulation of intracellular translation of nucleic acids. The present invention solves this problem by providing new mRNA molecules incorporating chemical alterations which impart properties which are advantageous to therapeutic development.

SUMMARY OF THE INVENTION

The present disclosure provides, inter alia, alternative nucleosides, alternative nucleotides, and alternative nucleic acids including an alternative nucleobase, sugar or backbone.

In one aspect, the invention features an mRNA encoding a polypeptide of interest, wherein said mRNA contains an alternative uracil and alternative cytosine in the percentages recited in any one of Tables A1-A22 (e.g., the percentages recited in Table A1, the percentages recited in Table A2, the percentages recited in Table A3, the percentages recited in Table A4, the percentages recited in Table A5, the percentages recited in Table A6, the percentages recited in Table A7, the percentages recited in Table A8, the percentages recited in Table A9, the percentages recited in Table A10, the percentages recited in Table A11, the percentages recited in Table A12, the percentages recited in Table A13, the percentages recited in Table A14, the percentages recited in Table A15, the percentages recited in Table A16, the percentages recited in Table A17, the percentages recited in Table A18, the percentages recited in Table A19, the percentages recited in Table A20, the percentages recited in Table A21, or the percentages recited in Table A22).

In some embodiments, the alternative uracil represents about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, or about 75% of the uracils in the mRNA and said alternative cytosine represents about 5%, about 10%, about 12.5%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the cytosines in the mRNA.

In other embodiments, the alternative uracil and the alternative cytosine are 1-methyl-pseudouracil and 5-methyl-cytosine, pseudouracil and 5-methyl-cytosine, 1-methyl-pseudouracil and 5-iodo-cytosine, 1-methyl-pseudouracil and 5-methyl-cytosine, pseudouracil and 5-methyl-cytosine, 5-methoxy-uracil and 5-trifluoromethyl-cytosine, 5-methoxy-uracil and 5-hydroxymethyl-cytosine, 5-methoxy-uracil and 5-bromo-cytosine, 2-thio-uracil and 5-methyl-cytosine, 1-methyl-pseudouracil and 5-bromo-cytosine, 5-methoxy-uracil and N4-acetyl-cytosine, 5-methoxy-uracil and N4-methyl-cytosine, 5-methoxy-uracil and pseudoisocytosine, 5-methoxy-uracil and 5-formyl-cytosine, 5-methoxy-uracil and 5-aminoallyl-cytosine, 5-methoxy-uracil and 5-fluoro-cytosine, 5-methoxy-uracil and 5-iodo-cytosine, 5-methoxy-uracil and 5-ethyl-cytosine, 5-methoxy-uracil and 5-methoxy-cytosine, 5-methoxy-uracil and 5-ethynyl-cytosine, 5-methoxy-uracil and 5-phenyl-cytosine, 5-methoxy-uracil and N4-benzoyl-cytosine, or 5-methoxy-uracil and 5-carboxy-cytosine.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least two bases are pseudouracil and 5-hydroxymethyl-cytosine, pseudouracil and 5-iodo-cytosine, pseudouracil and N4-acetyl-cytosine, 1-ethyl-pseudouracil and 5-methyl-cytosine, 1-propyl-uracil and 5-methyl-cytosine, 1-benzyl-uracil and 5-methyl-cytosine, 1-methyl-pseudouracil and 5-ethyl-cytosine, 1-methyl-pseudouracil and 5-methoxy-cytosine, 1-methyl-pseudouracil and 5-ethynyl-cytosine, pseudouracil and 5-ethynyl-cytosine, 1-methyl-pseudouracil and N4-methyl-cytosine, 1-methyl-pseudouracil and 5-fluoro-cytosine, 5-methoxy-uracil and 5-fluoro-cytosine, 1-methyl-pseudouracil and 5-phenyl-cytosine, 1-methyl-pseudouracil and N4-benzoyl-cytosine, 1-methyl-pseudouracil and N6-isopentenyl-cytosine, or 5-methoxy-uracil and N6-isopentenyl-cytosine.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein an alternative uracil represents about 25%-100% (e.g., about 25%-35%, about 30% to 40%, about 35%-45%, about 40%-50%, about 45%-55%, about 50%-60%, about 55%-65%, about 60%-70%, about 65%-75%, about 70%-80%, about 75%-85%, about 80%-90%, about 85%-95%, about 90%-100%, about 95%-100%, about 25%-50%, about 25%-75%, about 50%-75%) of the uracils in the mRNA, wherein the alternative uracil is 5-isopentenyl-aminomethyl-uracil, 5-hydroxy-uracil, 5-carbamoyl-methyl-uracil, 5-methyl-uracil, 5-methyl-2-thio-uracil, 4-thio-uracil, or 5-methoxy-carbonylmethyl-uracil.

In some embodiments of any of the foregoing mRNA, the alternative uracil represents about 25%, about 50%, about 75%, or about 100% of the uracils in the mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least one base is 1-methyl-pseudouracil and one base is 5-methoxy-uracil.

In some embodiments, 1-methyl-pseudouracil represents about 25% of the uracils and 5-methoxy-uracil represents about 75% of the uracils, 1-methyl-pseudouracil represents about 50% of the uracils and 5-methoxy-uracil represents about 50% of the uracils, or 1-methyl-pseudouracil represents about 75% of the uracils and 5-methoxy-uracil represents about 25% of the uracils.

In other embodiments, at least one base is 5-methyl-cytosine.

In certain embodiments, 5-methylcytosine represents about 5%, about 10%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the cytosines.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least one base is 2-pyridone, 6-flouro-2-pyridone, 3-methyl-2-pyridone, 6-methyl-2-pyridone, 5-methyl-5,6-dihydro-uracil, or 1-benzyl-pseudouracil.

In some embodiments, at least one base is 5-methyl-cytosine.

In other embodiments of any of the foregoing mRNA, at least one base is an alternative adenine and/or an alternative guanine (e.g., 8-methyl-adenine, N6-isopentenyl-adenine, N6-methyl-adenine, 8-azido-adenine, N6-methyl-2-amino-purine, 2-amino-purine, 2-amino-6-chloro-purine, 06-methyl-guanine, 7-deaza-guanine, or N7-methyl-guanine).

In certain embodiments, the alternative adenine and/or alternative guanine represents about 25%-100% (e.g., about 25%-35%, about 30% to 40%, about 35%-45%, about 40%-50%, about 45%-55%, about 50%-60%, about 55%-65%, about 60%-70%, about 65%-75%, about 70%-80%, about 75%-85%, about 80%-90%, about 85%-95%, about 90%-100%, about 95%-100%, about 25%-50%, about 25%-75%, about 50%-75%) of the adenines and/or guanines in the mRNA.

In some embodiments, the alternative adenine and/or guanine represents about 5%, about 10%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the adenines and/or guanines in the mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein said mRNA contains an alternative uridine and alternative cytidine in the percentages of Tables B1-B22 (e.g., the percentages recited in Table B1, the percentages recited in Table B2, the percentages recited in Table B3, the percentages recited in Table B4, the percentages recited in Table B5, the percentages recited in Table B6, the percentages recited in Table B7, the percentages recited in Table B8, the percentages recited in Table B9, the percentages recited in Table B10, the percentages recited in Table B11, the percentages recited in Table B12, the percentages recited in Table B13, the percentages recited in Table B14, the percentages recited in Table B15, the percentages recited in Table B16, the percentages recited in Table B17, the percentages recited in Table B18, the percentages recited in Table B19, the percentages recited in Table B20, the percentages recited in Table B21, or the percentages recited in Table B22).

In some embodiments, the alternative uridine represents about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, or about 75% of the uridines in the mRNA and said alternative cytidine represents about 5%, about 10%, about 12.5%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the cytidines in the mRNA.

In other embodiments, the alternative uridine and the alternative cytidine are 1-methyl-pseudouridine and 5-methyl-cytidine, pseudouridine and 5-methyl-cytidine, 1-methyl-pseudouridine and 5-iodo-cytidine, 1-methyl-pseudouridine and 5-methyl-cytidine, pseudouridine and 5-methyl-cytidine, 5-methoxy-uridine and 5-trifluoromethyl-cytidine, 5-methoxy-uridine and 5-hydroxymethyl-cytidine, 5-methoxy-uridine and 5-bromo-cytidine, 2-thio-uridine and 5-methyl-cytidine, 1-methyl-pseudouridine and 5-bromo-cytidine, 5-methoxy-uridine and N4-acetyl-cytidine, 5-methoxy-uridine and N4-methyl-cytidine, 5-methoxy-uridine and pseudoisocytidine, 5-methoxy-uridine and 5-formyl-cytidine, 5-methoxy-uridine and 5-aminoallyl-cytidine, 5-methoxy-uridine and 5-fluoro-cytidine, 5-methoxy-uridine and 5-iodo-cytidine, 5-methoxy-uridine and 5-ethyl-cytidine, 5-methoxy-uridine and 5-methoxy-cytidine, 5-methoxy-uridine and 5-ethynyl-cytidine, 5-methoxy-uridine and 5-phenyl-cytidine, 5-methoxy-uridine and N4-benzoyl-cytidine, or 5-methoxy-uridine and 5-carboxy-cytidine.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least two bases are pseudouridine and 5-hydroxymethyl-cytidine, pseudouridine and 5-iodo-cytidine, pseudouridine and N4-acetyl-cytidine, 1-ethyl-pseudouridine and 5-methyl-cytidine, 1-propyl-uridine and 5-methyl-cytidine, 1-benzyl-uridine and 5-methyl-cytidine, 1-methyl-pseudouridine and 5-ethyl-cytidine, 1-methyl-pseudouridine and 5-methoxy-cytidine, 1-methyl-pseudouridine and 5-ethynyl-cytidine, pseudouridine and 5-ethynyl-cytidine, 1-methyl-pseudouridine and N4-methyl-cytidine, 1-methyl-pseudouridine and 5-fluoro-cytidine, 5-methoxy-uridine and 5-fluoro-cytidine, 1-methyl-pseudouridine and 5-phenyl-cytidine, 1-methyl-pseudouridine and N4-benzoyl-cytidine, 1-methyl-pseudouridine and N6-isopentenyl-cytidine, or 5-methoxy-uridine and N6-isopentenyl-cytidine.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein an alternative uridine represents about 25%-100% (e.g., about 25%-35%, about 30% to 40%, about 35%-45%, about 40%-50%, about 45%-55%, about 50%-60%, about 55%-65%, about 60%-70%, about 65%-75%, about 70%-80%, about 75%-85%, about 80%-90%, about 85%-95%, about 90%-100%, about 95%-100%, about 25%-50%, about 25%-75%, about 50%-75%) of the uridines in the mRNA, wherein the alternative uridine is 5-isopentenyl-aminomethyl-uridine, 5-hydroxy-uridine, 5-carbamoyl-methyl-uridine, 5-methyl-uridine, 5-methyl-2-thio-uridine, 4-thio-uridine, or 5-methoxy-carbonylmethyl-uridine.

In some embodiments of any of the foregoing mRNA, the alternative uridine represents about 25%, about 50%, about 75%, or about 100% of the uridines in the mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least one base is 1-methyl-pseudouridine and one base is 5-methoxy-uridine.

In some embodiments, 1-methyl-pseudouridine represents about 25% of the uridines and 5-methoxy-uridine represents about 75% of the uridines, 1-methyl-pseudouridine represents about 50% of the uridines and 5-methoxy-uridine represents about 50% of the uridines, or 1-methyl-pseudouridine represents about 75% of the uridines and 5-methoxy-uridine represents about 25% of the uridines.

In other embodiments, at least one base is 5-methyl-cytidine.

In certain embodiments, 5-methylcytidine represents about 5%, about 10%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the cytidines.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein at least one base is 2-pyridone, 6-flouro-2-pyridone, 3-methyl-2-pyridone, 6-methyl-2-pyridone, 5-methyl-5,6-dihydro-uracil, or 1-benzyl-pseudouracil.

In some embodiments, at least one base is 5-methyl-cytidine.

In other embodiments of any of the foregoing mRNA, at least one base is an alternative adenine and/or an alternative guanine (e.g., 8-methyl-adenine, N6-isopentenyl-adenine, N6-methyl-adenine, 8-azido-adenine, N6-methyl-2-amino-purine, 2-amino-purine, 2-amino-6-chloro-purine, 06-methyl-guanine, 7-deaza-guanine, or N7-methyl-guanine).

In certain embodiments, the alternative adenine and/or alternative guanine represents about 25%-100% (e.g., about 25%-35%, about 30% to 40%, about 35%-45%, about 40%-50%, about 45%-55%, about 50%-60%, about 55%-65%, about 60%-70%, about 65%-75%, about 70%-80%, about 75%-85%, about 80%-90%, about 85%-95%, about 90%-100%, about 95%-100%, about 25%-50%, about 25%-75%, about 50%-75%) of the adenines and/or guanines in the mRNA.

In some embodiments, the alternative adenine and/or guanine represents about 5%, about 10%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the adenines and/or guanines in the mRNA.

In some embodiments of any of the foregoing mRNA, at least one nucleotide is alpha-thio-adenosine, alpha-thio-guanosine, and/or alpha-thio-cytidine (e.g., alpha-thio-adenosine and/or alpha-thio-guanosine).

In other embodiments, alpha-thio-adenosine, alpha-thio-guanosine, and/or alpha-thio-cytidine represent about 2%-100% (e.g., about 2%-10%, about 5%-15%, about 10%-20%, about 15%-25%, about 25%-35%, about 30% to 40%, about 35%-45%, about 40%-50%, about 45%-55%, about 50%-60%, about 55%-65%, about 60%-70%, about 65%-75%, about 70%-80%, about 75%-85%, about 80%-90%, about 85%-95%, about 90%-100%, about 95%-100%, about 25%-50%, about 25%-75%, about 50%-75%) of the adenosines, guanosines, and/or cytidines in the mRNA.

In certain embodiments, alpha-thio-adenosine, alpha-thio-guanosine, and/or alpha-thio-cytidine represent about 2%, about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, about 75%, about 80%, about 85%, about 90%, about 95%, or about 100% of the adenosines, guanosines, and/or cytidines in the mRNA.

In some embodiments, any of the foregoing mRNA further include:

(i) at least one 5′ cap structure;

(ii) a 5′ UTR optionally including a Kozak sequence; and

(iii) a 3′ UTR.

In other embodiments, the at least one 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.

In some embodiments, any of the foregoing mRNA further include a poly-A tail.

In other embodiments, any of the foregoing mRNA are purified.

In certain embodiments, any of the foregoing mRNA are codon optimized (e.g., the mRNA comprises an open reading frame that is codon optimized and/or the mRNA is codon optimized to minimize base runs that impair gene expression).

In another aspect, the invention features a pharmaceutical composition including any of the foregoing mRNA and a pharmaceutically acceptable excipient.

In another aspect, the invention features a method of expressing a polypeptide of interest in a mammalian cell, said method comprising the steps of:

-   -   (i) providing any of the foregoing mRNA; and     -   (ii) introducing said mRNA to a mammalian cell under conditions         that permit the expression of the polypeptide of interest by the         mammalian cell.

In some embodiments, the innate immune response associated with the mRNA is reduced by at least 50% relative to the innate immune response induced by a corresponding unmodified mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein 5-methoxy-uracil represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uracils in the mRNA and 5-methyl-cytosine represents 50-100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytosines in the mRNA.

In some embodiments, 5-methoxy-uracil represents from 15% to 35% of the uracils in the mRNA and 5-methyl-cytosine represents 75-100% of the cytosines in the mRNA.

In other embodiments, wherein 5-methoxy-uracil represents about 25% of the uracils in the mRNA and 5-methyl-cytosine represents about 100% of the cytosines in the mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, the mRNA including at least one 5′ cap structure; a 5′ UTR (e.g., a 5′ UTR including a Kozak sequence); and a 3′ UTR, wherein 5-methoxy-uracil represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uracils in the mRNA and the alternative cytosine represents from 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytosines in the mRNA.

In another aspect, the invention features an mRNA encoding a polypeptide of interest, wherein 5-methoxy-uridine represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uridines in the mRNA and 5-methyl-cytidine represents 50-100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytidines in the mRNA.

In some embodiments, 5-methoxy-uridine represents from 15% to 35% of the uridines in the mRNA and 5-methyl-cytidine represents 75-100% of the cytidines in the mRNA.

In other embodiments, 5-methoxy-uridine represents about 25% of the uridines in the mRNA and 5-methyl-cytidine represents about 100% of the cytidines in the mRNA.

In certain embodiments of any of the above aspects, the mRNA further includes:

-   -   (i) at least one 5′ cap structure;     -   (ii) a 5′ UTR optionally including a Kozak sequence; and     -   (iii) a 3′ UTR.

In some embodiments, the at least one 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.

In other embodiments, the mRNA further includes a poly-A tail.

In some embodiments, the mRNA is purified.

In other embodiments of the foregoing aspects, the mRNA is codon optimized (e.g., the mRNA includes an open reading frame that is codon optimized and/or the mRNA is codon optimized to minimize base runs that impair gene expression).

In another aspect, the invention features a pharmaceutical composition including any of the foregoing mRNAs and a pharmaceutically acceptable excipient.

In another aspect, the invention features any of the foregoing mRNAs or pharmaceutical compositions for use in therapy.

In another aspect, the invention features a method of expressing a polypeptide of interest in a mammalian cell, said method including the steps of:

(i) providing an mRNA encoding a polypeptide of interest, wherein 5-methoxy-uracil represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uracils in the mRNA and 5-methyl-cytosine represents from 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytosines in the mRNA; and

(ii) introducing the mRNA to a mammalian cell under conditions that permit the expression of the polypeptide of interest by the mammalian cell.

In another aspect, the invention features a method of expressing a polypeptide of interest in a mammalian cell, said method comprising the steps of:

(i) providing an mRNA encoding the polypeptide of interest, the mRNA comprising at least one 5′ cap structure; a 5′ UTR (e.g., a 5′ UTR including a Kozak sequence); and a 3′ UTR, wherein 5-methoxy-uracil represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uracils in the mRNA and 5-methyl-cytosine represents from 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytosines in the mRNA; and

(ii) introducing the mRNA to a mammalian cell capable of expressing the polypeptide of interest under conditions that permit the expression of the polypeptide of interest by the mammalian cell.

In certain embodiments of any of the foregoing methods, 5-methoxy-uracil represents from 15% to 35% of the uracils in the mRNA and 5-methyl-cytosine represents 75% to 100% of the cytosines in the mRNA.

In particular embodiments, 5-methoxy-uracil represents about 25% of the uracils in the mRNA and 5-methyl-cytosine represents about 100% of the cytosines in the mRNA.

In another aspect, the invention features a method of expressing a polypeptide of interest in a mammalian cell, said method including the steps of:

(i) providing an mRNA encoding a polypeptide of interest, wherein 5-methoxy-uridine represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uridines in the mRNA and 5-methyl-cytidine represents from 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytidines in the mRNA; and

(ii) introducing the mRNA to a mammalian cell under conditions that permit the expression of the polypeptide of interest by the mammalian cell.

In another aspect, the invention features a method of expressing a polypeptide of interest in a mammalian cell, said method comprising the steps of:

(i) providing an mRNA encoding the polypeptide of interest, the mRNA comprising at least one 5′ cap structure; a 5′ UTR (e.g., a 5′ UTR including a Kozak sequence); and a 3′ UTR, wherein 5-methoxy-uridine represents from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uridines in the mRNA and 5-methyl-cytidine represents from 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytidines in the mRNA; and

(ii) introducing the mRNA to a mammalian cell capable of expressing the polypeptide of interest under conditions that permit the expression of the polypeptide of interest by the mammalian cell.

In some embodiments of any of the foregoing methods, the at least one 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.

In other embodiments of any of the foregoing methods, the mRNA further includes a poly-A tail.

In certain embodiments of any of the foregoing methods, 5-methoxy-uridine represents from 15% to 35% of the uridines in the mRNA and 5-methyl-cytidine represents 75% to 100% of the cytidines in the mRNA.

In some embodiments of any of the foregoing methods, 5-methoxy-uridine represents about 25% of the uridines in the mRNA and 5-methyl-cytidine represents about 100% of the cytidines in the mRNA.

In other embodiments of any of the foregoing methods, the innate immune response associated with the mRNA is reduced by at least 50% (e.g., at least 60%, at least 70%, at least 80%, at least 90%, at least 95%) relative to the innate immune response induced by a corresponding unaltered mRNA.

In certain embodiments of any of the foregoing methods, the mRNA further includes a poly-A tail.

In certain embodiments of any of the foregoing methods, the mRNA is codon optimized.

In another aspect, the invention features a method for producing an mRNA encoding a polypeptide of interest including contacting a cDNA that encodes the protein of interest with an RNA polymerase in the presence of a nucleotide triphosphate mix, wherein from 10% to 50% (e.g., 10% to 20%, 15% to 25%, 20% to 30%, 25% to 35%, 30% to 40%, 35% to 45%, or 40% to 50%) of the uridine triphosphate includes 5-methoxy-uracil and 50% to 100% (e.g., 50% to 60%, 55% to 65%, 60% to 70%, 65% to 75%, 70% to 80%, 75% to 85%, 80%, to 90%, 85% to 95%, 90% to 100%, or 95% to 100%) of the cytidine triphosphate includes 5-methyl-cytosine.

In some embodiments, from 15% to 35% of the uridine triphosphate includes 5-methoxy-uracil and 75% to 100% of the cytidine triphosphate includes 5-methyl-cytosine, or wherein about 25% of the uridine triphosphate includes 5-methoxy-uracil and about 75% of the cytidine triphosphate includes 5-methyl-cytosine.

In other embodiments, the RNA polymerase is T7 RNA polymerase.

In another aspect, the invention features an mRNA produced by any of the foregoing methods.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least two bases are 5-trifluoromethyl-cytosine and 1-methyl-pseudo-uracil; 5-hydroxymethyl-cytosine and 1-methyl-pseudo-uracil; 5-bromo-cytosine and 1-methyl-pseudo-uracil; 5-trifluoromethyl-cytosine and pseudo-uracil; 5-hydroxymethyl-cytosine and pseudo-uracil; 5-bromo-cytosine and pseudo-uracil; cytosine and 5-methoxy-uracil; 5-methyl-cytosine and 5-methoxy-uracil; 5-trifluoromethyl-cytosine and 5-methoxy-uracil; 5-hydroxymethyl-cytosine and 5-methoxy-uracil; or 5-bromo-cytosine and 5-methoxy-uracil.

In some embodiments, at least two bases are 5-trifluoromethyl-cytosine and 5-methoxy-uracil; 5-hydroxymethyl-cytosine and 5-methoxy-uracil; or 5-bromo-cytosine and 5-methoxy-uracil.

In other embodiments, at least two bases are 5-bromo-cytosine and 5-methoxy-uracil.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base is 1,6-Dimethyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(1-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(2-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-allyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-ethynyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-homoallyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-vinyl-pseudo-uracil, 1-Methyl-6-(2,2,2-Trifluoroethyl)pseudo-uracil, 1-Methyl-6-(4-morpholino)-pseudo-uracil, 1-Methyl-6-(4-thiomorpholino)-pseudo-uracil, 1-Methyl-6-(optionally substituted phenyl)pseudo-uracil, 1-Methyl-6-amino-pseudo-uracil, 1-Methyl-6-azido-pseudo-uracil, 1-Methyl-6-bromo-pseudo-uracil, 1-Methyl-6-butyl-pseudo-uracil, 1-Methyl-6-chloro-pseudo-uracil, 1-Methyl-6-cyano-pseudo-uracil, 1-Methyl-6-dimethylamino-pseudo-uracil, 1-Methyl-6-ethoxy-pseudo-uracil, 1-Methyl-6-ethylcarboxylate-pseudo-uracil, 1-Methyl-6-ethyl-pseudo-uracil, 1-Methyl-6-fluoro-pseudo-uracil, 1-Methyl-6-formyl-pseudo-uracil, 1-Methyl-6-hydroxyamino-pseudo-uracil, 1-Methyl-6-hydroxy-pseudo-uracil, 1-Methyl-6-iodo-pseudo-uracil, 1-Methyl-6-iso-propyl-pseudo-uracil, 1-Methyl-6-methoxy-pseudo-uracil, 1-Methyl-6-methylamino-pseudo-uracil, 1-Methyl-6-phenyl-pseudo-uracil, 1-Methyl-6-propyl-pseudo-uracil, 1-Methyl-6-tert-butyl-pseudo-uracil, 1-Methyl-6-trifluoromethoxy-pseudo-uracil, 1-Methyl-6-trifluoromethyl-pseudo-uracil, 6-(2,2,2-Trifluoroethyl)-pseudo-uracil, 6-(4-Morpholino)-pseudo-uracil, 6-(4-Thiomorpholino)-pseudo-uracil, 6-(optionally substituted-Phenyl)-pseudo-uracil, 6-Amino-pseudo-uracil, 6-Azido-pseudo-uracil, 6-Bromo-pseudo-uracil, 6-Butyl-pseudo-uracil, 6-Chloro-pseudo-uracil, 6-Cyano-pseudo-uracil, 6-Dimethylamino-pseudo-uracil, 6-Ethoxy-pseudo-uracil, 6-Ethylcarboxylate-pseudo-uracil, 6-Ethyl-pseudo-uracil, 6-Fluoro-pseudo-uracil, 6-Formyl-pseudo-uracil, 6-Hydroxyamino-pseudo-uracil, 6-Hydroxy-pseudo-uracil, 6-Iodo-pseudo-uracil, 6-iso-Propyl-pseudo-uracil, 6-Methoxy-pseudo-uracil, 6-Methylamino-pseudo-uracil, 6-Methyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Propyl-pseudo-uracil, 6-tert-Butyl-pseudo-uracil, 6-Trifluoromethoxy-pseudo-uracil, 6-Trifluoromethyl-pseudo-uracil, 1-(3-Amino-3-carboxypropyl)pseudo-uracil, 1-(2,2,2-Trifluoroethyl)-pseudo-uracil, 1-(2,4,6-Trimethyl-benzyl)pseudo-uracil, 1-(2,4,6-Trimethyl-phenyl)pseudo-uracil, 1-(2-Amino-2-carboxyethyl)pseudo-uracil, 1-(2-Amino-ethyl)pseudo-uracil, 1-(3-Amino-propyl)pseudo-uracil, 1-(4-Amino-4-carboxybutyl)pseudo-uracil, 1-(4-Amino-benzyl)pseudo-uracil, 1-(4-Amino-butyl)pseudo-uracil, 1-(4-Amino-phenyl)pseudo-uracil, 1-(4-Methoxy-benzyl)pseudo-uracil, 1-(4-Methoxy-phenyl)pseudo-uracil, 1-(4-Methyl-benzyl)pseudo-uracil, 1-(4-Nitro-benzyl)pseudo-uracil, 1(4-Nitro-phenyl)pseudo-uracil, 1-(5-Amino-pentyl)pseudo-uracil, 1-(6-Amino-hexyl)pseudo-uracil, 1-Aminomethyl-pseudo-uracil, 1-Benzyl-pseudo-uracil, 1-Butyl-pseudo-uracil, 1-Cyclobutylmethyl-pseudo-uracil, 1-Cyclobutyl-pseudo-uracil, 1-Cycloheptylmethyl-pseudo-uracil, 1-Cycloheptyl-pseudo-uracil, 1-Cyclohexylmethyl-pseudo-uracil, 1-Cyclohexyl-pseudo-uracil, 1-Cyclooctylmethyl-pseudo-uracil, 1-Cyclooctyl-pseudo-uracil, 1-Cyclopentylmethyl-pseudo-uracil, 1-Cyclopentyl-pseudo-uracil, 1-Cyclopropylmethyl-pseudo-uracil, 1-Cyclopropyl-pseudo-uracil, 1-Ethyl-pseudo-uracil, 1-Hexyl-pseudo-uracil, 1-iso-Propyl-pseudo-uracil 1-Pentyl-pseudo-uracil, 1-Phenyl-pseudo-uracil, 1-Propyl-pseudo-uracil, 1-p-toluyl-pseudo-uracil, 1-tert-Butyl-pseudo-uracil, 1-Trifluoromethyl-pseudo-uracil, 3-(optionally substituted C₁-C₆ Alkyl)-pseudo-uracil, Pseudo-uracil-N1-2-ethanoic acid, Pseudo-uracil-N1-3-propionic acid, Pseudo-uracil-N1-4-butanoic acid, Pseudo-uracil-N1-5-pentanoic acid, Pseudo-uracil-N1-6-hexanoic acid, Pseudo-uracil-N1-7-heptanoic acid, Pseudo-uracil-N1-methyl-p-benzoic acid, 6-phenyl-pseudo-uracil, 6-azido-pseudo-uracil, Pseudo-uracil-N1-p-benzoic acid, N3-Methyl-pseudo-uracil, 5-Methyl-amino-methyl-uracil, 5-Carboxy-methyl-amino-methyl-uracil, 5-(carboxyhydroxymethyl)uracil methyl ester 5-(carboxyhydroxymethyl)uracil, 2-anhydro-cytosine, 2-anhydro-uracil, 5-Methoxycarbonylmethyl-2-thio-uracil, 5-Methylaminomethyl-2-seleno-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-(iso-Pentenylaminomethyl)-2-thio-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-Trideuteromethyl-6-deutero-uracil, 5-(2-Chloro-phenyl)-2-thio-cytosine, 5-(4-Amino-phenyl)-2-thio-cytosine, 5-(2-Furanyl)-uracil, 8-Trifluoromethyl-adenine, 2-Trifluoromethyl-adenine, 3-Deaza-3-fluoro-adenine, 3-Deaza-3-bromo-adenine, 3-Deaza-3-iodo-adenine, 1-Hydroxymethyl-pseudo-uracil, 1-(2-Hydroxyethyl)-pseudo-uracil, 1-Methoxymethyl-pseudo-uracil, 1-(2-Methoxyethyl)-pseudo-uracil, 1-(2,2-Diethoxyethyl)-pseudo-uracil, 1-(2-Hydroxypropyl)-pseudo-uracil, (2R)-1-(2-Hydroxypropyl)-pseudo-uracil, (2S)-1-(2-Hydroxypropyl)-pseudo-uracil, 1-Cyanomethyl-pseudo-uracil, 1-Morpholinomethyl-pseudo-uracil, 1-Thiomorpholinomethyl-pseudo-uracil, 1-Benzyloxymethyl-pseudo-uracil, 1-(2,2,3,3,3-Pentafluoropropyl)-pseudo-uracil, 1-Thiomethoxymethyl-pseudo-uracil, 1-Methanesulfonylmethyl-pseudo-uracil, 1-Vinyl-pseudo-uracil, 1-Allyl-pseudo-uracil, 1-Homoallyl-pseudo-uracil, 1-Propargyl-pseudo-uracil, 1-(4-Fluorobenzyl)-pseudo-uracil, 1-(4-Chlorobenzyl)-pseudo-uracil, 1-(4-Bromobenzyl)-pseudo-uracil, 1-(4-Iodobenzyl)-pseudo-uracil, 1-(4-Methylbenzyl)-pseudo-uracil, 1-(4-Trifluoromethylbenzyl)-pseudo-uracil, 1-(4-Methoxybenzyl)-pseudo-uracil, 1-(4-Trifluoromethoxybenzyl)-pseudo-uracil, 1-(4-Thiomethoxybenzyl)-pseudo-uracil, 1-(4-Methanesulfonylbenzyl)-pseudo-uracil, Pseudo-uracil 1-(4-methylbenzoic acid), Pseudo-uracil 1-(4-methylbenzenesulfonic acid), 1-(2,4,6-Trimethylbenzyl)-pseudo-uracil, 1-(4-Nitrobenzyl)-pseudo-uracil, 1-(4-Azidobenzyl)-pseudo-uracil, 1-(3,4-Dimethoxybenzyl)-pseudo-uracil, 1-(3,4-Bis-trifluoromethoxybenzyl)-pseudo-uracil, 1-Acetyl-pseudo-uracil, 1-Trifluoroacetyl-pseudo-uracil, 1-Benzoyl-pseudo-uracil, 1-Pivaloyl-pseudo-uracil, 1-(3-Cyclopropyl-prop-2-ynyl)-pseudo-uracil, Pseudo-uracil 1-methylphosphonic acid diethyl ester, Pseudo-uracil 1-methylphosphonic acid, Pseudo-uracil 1-[3-(2-ethoxy)]propionic acid, Pseudo-uracil 1-[3-{2-(2-ethoxy)-ethoxy}] propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-(2-ethoxy)-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-{2(2-ethoxy)-ethoxy}-ethoxy]-ethoxy)-ethoxy}]propionic acid, 1-{3-[2-(2-Aminoethoxy)-ethoxy]-propionyl} pseudo-uracil, 1-[3-(2-{2-[2-(2-Aminoethoxy)-ethoxy]-ethoxyl-ethoxy)-propionyl}]-pseudo-uracil, 1-Biotinyl-pseudo-uracil, 1-Biotinyl-PEG2-pseudo-uracil, 5-(C₃₋₈ cycloalkyl)-cytosine, 5-methyl-N6-acetyl-1-cytosine, 5-(carboxymethyl)-N6-trifluoroacetyl-cytosine trifluoromethyl ester, N6-propionyl-cytosine, 5-monofluoromethyl-cytosine, 5-trifluoromethoxy-cytosine, N6-(1,1,1-trifluoro-propionyl)-cytosine, 4-acetyl-pseudo-isocytosine, 1-ethyl-pseudo-isocytosine, 1-hydroxy-pseudo-isocytosine, or 1-(2,2,2-trifluoroethyl)-pseudo-uracil.

In some embodiments, at least one base is 1,6-Dimethyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(1-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(2-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-allyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-ethynyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-homoallyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-vinyl-pseudo-uracil, 1-Methyl-6-(2,2,2-Trifluoroethyl)pseudo-uracil, 1-Methyl-6-(4-morpholino)-pseudo-uracil, 1-Methyl-6-(4-thiomorpholino)-pseudo-uracil, 1-Methyl-6-(optionally substituted phenyl)pseudo-uracil, 1-Methyl-6-amino-pseudo-uracil, 1-Methyl-6-azido-pseudo-uracil, 1-Methyl-6-bromo-pseudo-uracil, 1-Methyl-6-butyl-pseudo-uracil, 1-Methyl-6-chloro-pseudo-uracil, 1-Methyl-6-cyano-pseudo-uracil, 1-Methyl-6-dimethylamino-pseudo-uracil, 1-Methyl-6-ethoxy-pseudo-uracil, 1-Methyl-6-ethylcarboxylate-pseudo-uracil, 1-Methyl-6-ethyl-pseudo-uracil, 1-Methyl-6-fluoro-pseudo-uracil, 1-Methyl-6-formyl-pseudo-uracil, 1-Methyl-6-hydroxyamino-pseudo-uracil, 1-Methyl-6-hydroxy-pseudo-uracil, 1-Methyl-6-iodo-pseudo-uracil, 1-Methyl-6-iso-propyl-pseudo-uracil, 1-Methyl-6-methoxy-pseudo-uracil, 1-Methyl-6-methylamino-pseudo-uracil, 1-Methyl-6-phenyl-pseudo-uracil, 1-Methyl-6-propyl-pseudo-uracil, 1-Methyl-6-tert-butyl-pseudo-uracil, 1-Methyl-6-trifluoromethoxy-pseudo-uracil, 1-Methyl-6-trifluoromethyl-pseudo-uracil, 6-(2,2,2-Trifluoroethyl)-pseudo-uracil, 6-(4-Morpholino)-pseudo-uracil, 6-(4-Thiomorpholino)-pseudo-uracil, 6-(Substituted-Phenyl)-pseudo-uracil, 6-Amino-pseudo-uracil, 6-Azido-pseudo-uracil, 6-Bromo-pseudo-uracil, 6-Butyl-pseudo-uracil, 6-Chloro-pseudo-uracil, 6-Cyano-pseudo-uracil, 6-Dimethylamino-pseudo-uracil, 6-Ethoxy-pseudo-uracil, 6-Ethylcarboxylate-pseudo-uracil, 6-Ethyl-pseudo-uracil, 6-Fluoro-pseudo-uracil, 6-Formyl-pseudo-uracil, 6-Hydroxyamino-pseudo-uracil, 6-Hydroxy-pseudo-uracil, 6-Iodo-pseudo-uracil, 6-iso-Propyl-pseudo-uracil, 6-Methoxy-pseudo-uracil, 6-Methylamino-pseudo-uracil, 6-Methyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Propyl-pseudo-uracil, 6-tert-Butyl-pseudo-uracil, 6-Trifluoromethoxy-pseudo-uracil, 6-Trifluoromethyl-pseudo-uracil, 1-(3-Amino-3-carboxypropyl)pseudo-uracil, 1-(2,2,2-Trifluoroethyl)-pseudo-uracil, 1-(2,4,6-Trimethyl-benzyl)pseudo-uracil, 1-(2,4,6-Trimethyl-phenyl)pseudo-uracil, 1-(2-Amino-2-carboxyethyl)pseudo-uracil, 1-(2-Amino-ethyl)pseudo-uracil, 1-(3-Amino-propyl)pseudo-uracil, 1-(4-Amino-4-carboxybutyl)pseudo-uracil, 1-(4-Amino-benzyl)pseudo-uracil, 1-(4-Amino-butyl)pseudo-uracil, 1-(4-Amino-phenyl)pseudo-uracil, 1-(4-Methoxy-benzyl)pseudo-uracil, 1-(4-Methoxy-phenyl)pseudo-uracil, 1-(4-Methyl-benzyl)pseudo-uracil, 1-(4-Nitro-benzyl)pseudo-uracil, 1(4-Nitro-phenyl)pseudo-uracil, 1-(5-Amino-pentyl)pseudo-uracil, 1-(6-Amino-hexyl)pseudo-uracil, 1-Aminomethyl-pseudo-uracil, 1-Benzyl-pseudo-uracil, 1-Butyl-pseudo-uracil, 1-Cyclobutylmethyl-pseudo-uracil, 1-Cyclobutyl-pseudo-uracil, 1-Cycloheptylmethyl-pseudo-uracil, 1-Cycloheptyl-pseudo-uracil, 1-Cyclohexylmethyl-pseudo-uracil, 1-Cyclohexyl-pseudo-uracil, 1-Cyclooctylmethyl-pseudo-uracil, 1-Cyclooctyl-pseudo-uracil, 1-Cyclopentylmethyl-pseudo-uracil, 1-Cyclopentyl-pseudo-uracil, 1-Cyclopropylmethyl-pseudo-uracil, 1-Cyclopropyl-pseudo-uracil, 1-Ethyl-pseudo-uracil, 1-Hexyl-pseudo-uracil, 1-iso-Propyl-pseudo-uracil, 1-Pentyl-pseudo-uracil, 1-Phenyl-pseudo-uracil, 1-Propyl-pseudo-uracil, 1-p-tolyl-pseudo-uracil, 1-tert-Butyl-pseudo-uracil, 1-Trifluoromethyl-pseudo-uracil, 3-(optionally substituted C₁-C₆ Alkyl)-pseudo-uracil, Pseudo-uracil-N1-2-ethanoic acid, Pseudo-uracil-N1-3-propionic acid, Pseudo-uracil-N1-4-butanoic acid, Pseudo-uracil-N1-5-pentanoic acid, Pseudo-uracil-N1-6-hexanoic acid, Pseudo-uracil-N1-7-heptanoic acid, Pseudo-uracil-N1-methyl-p-benzoic acid, 6-phenyl-pseudo-uracil, 6-azido-pseudo-uracil, or Pseudo-uracil-N1-p-benzoic acid.

In other embodiments, at least one base is N3-Methyl-pseudo-uracil, 5-Methyl-amino-methyl-uracil, 5-Carboxy-methyl-amino-methyl-uracil, 5-(carboxyhydroxymethyl)uracil methyl ester or 5-(carboxyhydroxymethyl)uracil.

In certain embodiments, at least one base is 2-anhydro-cytosine hydrochloride or 2-anhydro-uracil.

In some embodiments, at least one base is 5-Methoxycarbonylmethyl-2-thio-uracil, 5-Methylaminomethyl-2-seleno-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-(iso-Pentenylaminomethyl)-2-thio-uracil, or 5-(iso-Pentenylaminomethyl)-uracil.

In other embodiments, at least one base is 5-Trideuteromethyl-6-deutero-uracil, 5-(2-Chloro-phenyl)-2-thio-cytosine, 5-(4-Amino-phenyl)-2-thio-cytosine, 5-(2-Furanyl)-uracil, N4-methyl-cytosine, 8-Trifluoromethyl-adenine, 2-Trifluoromethyl-adenine, 3-Deaza-3-fluoro-adenine, 3-Deaza-3-bromo-adenine, or 3-Deaza-3-iodo-adenine.

In certain embodiments, at least one base is 1-Hydroxymethyl-pseudo-uracil, 1-(2-Hydroxyethyl)-pseudo-uracil, 1-Methoxymethyl-pseudo-uracil, 1-(2-Methoxyethyl)-pseudo-uracil, 1-(2,2-Diethoxyethyl)-pseudo-uracil, (±)1-(2-Hydroxypropyl)-pseudo-uracil, (2R)-1-(2-Hydroxypropyl)-pseudo-uracil, (2S)-1-(2-Hydroxypropyl)-pseudo-uracil, 1-Cyanomethyl-pseudo-uracil, 1-Morpholinomethyl-pseudo-uracil, 1-Thiomorpholinomethyl-pseudo-uracil, 1-Benzyloxymethyl-pseudo-uracil, 1-(2,2,3,3,3-Pentafluoropropyl)-pseudo-uracil, 1-Thiomethoxymethyl-pseudo-uracil, 1-Methanesulfonylmethyl-pseudo-uracil, 1-Vinyl-pseudo-uracil, 1-Allyl-pseudo-uracil, 1-Homoallyl-pseudo-uracil, 1-Propargyl-pseudo-uracil, 1-(4-Fluorobenzyl)-pseudo-uracil, 1-(4-Chlorobenzyl)-pseudo-uracil, 1-(4-Bromobenzyl)-pseudo-uracil, 1-(4-Iodobenzyl)-pseudo-uracil, 1-(4-Methylbenzyl)-pseudo-uracil, 1-(4-Trifluoromethylbenzyl)-pseudo-uracil, 1-(4-Methoxybenzyl)-pseudo-uracil, 1-(4-Trifluoromethoxybenzyl)-pseudo-uracil, 1-(4-Thiomethoxybenzyl)-pseudo-uracil, 1-(4-Methanesulfonylbenzyl)-pseudo-uracil, Pseudo-uracil 1-(4-methylbenzoic acid), Pseudo-uracil 1-(4-methylbenzenesulfonic acid), 1-(2,4,6-Trimethylbenzyl)-pseudo-uracil, 1-(4-Nitrobenzyl)-pseudo-uracil, 1-(4-Azidobenzyl)-pseudo-uracil, 1-(3,4-Dimethoxybenzyl)-pseudo-uracil, 1-(3,4-Bis-trifluoromethoxybenzyl)-pseudo-uracil, 1-Acetyl-pseudo-uracil, 1-Trifluoroacetyl-pseudo-uracil, 1-Benzoyl-pseudo-uracil, 1-Pivaloyl-pseudo-uracil, 1-(3-Cyclopropyl-prop-2-ynyl)-pseudo-uracil, Pseudo-uracil 1-methylphosphonic acid diethyl ester, Pseudo-uracil 1-methylphosphonic acid, Pseudo-uracil 1-[3-(2-ethoxy)]propionic acid, Pseudo-uracil 1-[3-{2-(2-ethoxy)-ethoxy}] propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-(2-ethoxy)-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-{2(2-ethoxy)-ethoxy}-ethoxy]-ethoxy)-ethoxy}]propionic acid, 1-{3-[2-(2-Aminoethoxy)-ethoxy]-propionyl} pseudo-uracil, 1-[3-(2-{2-[2-(2-Aminoethoxy)-ethoxy]-ethoxy}-ethoxy)-propionyl]-pseudo-uracil, 1-Biotinyl-pseudo-uracil, or 1-Biotinyl-PEG2-pseudo-uracil.

In some embodiments, at least one base is 5-cyclopropyl-cytosine, 5-methyl-N6-acetyl-1-cytosine, 5-(carboxymethyl)-N6-trifluoroacetyl-cytosine trifluoromethyl ester, N6-propionyl-cytosine, 5-monofluoromethyl-cytosine, 5-trifluoromethoxy-cytosine, N6-(1,1,1-trifluoro-propionyl)-cytosine, 4-acetyl-pseudo-isocytosine, 1-ethyl-pseudo-isocytosine, or 1-hydroxy-pseudo-isocytosine.

In other embodiments, at least one base is 1-(2,2,2-trifluoroethyl)-pseudo-uracil.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b15:

or a pharmaceutically acceptable salt thereof, wherein

T^(4′) and T^(4″) combine to form O (oxo); V⁵ is N or CR^(Vd); V⁶ is CR^(Vd); each R^(Vd) is, independently, hydrogen, nitro, chloro, iodo, optionally substituted C₁-C₆ aminoalkyl, or optionally substituted C₁-C₆ alkoxyalkyl; and R¹⁸, R^(19a), and R^(19b) are each hydrogen, provided that, when V⁵ is N, R^(Vd) is not hydrogen, and, V⁵ and V⁶ are not both CH.

In some embodiments, at least one base has the structure of Formula b50:

or a pharmaceutically acceptable salt thereof, wherein

-   -   n is 0, 1, 2, or 3; X is O or NR⁵¹; R⁴⁸ and R⁴⁹ are         independently hydrogen or optionally substituted C₁-C₆ alkyl, or         combine to form an optionally substituted C₃-C₈ cycloalkyl; and         R⁵⁰ and R⁵¹ are independently hydrogen or optionally substituted         C₁-C₆ alkyl.

In other embodiments, at least one base has the structure of Formula b51:

or a pharmaceutically acceptable salt thereof, wherein

n is 0, 1, 2, or 3; X¹ is N or CH; X² is O or NR⁵⁵; R⁵² and R⁵³ are independently hydrogen or optionally substituted C₁-C₆ alkyl, or combine to form an optionally substituted C₃-C₈ cycloalkyl; and R⁵⁴ and R⁵⁵ are independently hydrogen or optionally substituted C₁-C₆ alkyl.

In some embodiments, at least one base has the structure:

In other embodiments, at least one base has the structure:

In certain embodiments, at least one base has the structure:

In some embodiments, at least one base has the structure:

In other embodiments, at least one base has the structure:

In certain embodiments, at least one base has the structure:

In some embodiments, at least one base has the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b45:

or a pharmaceutically acceptable salt thereof,

wherein R³⁵ is hydrogen or optionally substituted C₁-C₆ alkyl.

In some embodiments, at least one base has the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b16:

or a pharmaceutically acceptable salt thereof, wherein

T^(5′) and T^(5″) combine to form O (oxo); R²¹ is hydrogen, chloro, bromo, iodo, nitro, or optionally substituted C₁-C₆ alkyl; and each of R²², R²³, and R²⁴ is, independently hydrogen or optionally substituted C₁-C₆ alkyl,

wherein said base does not have the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b3:

or a pharmaceutically acceptable salt thereof, wherein

T^(2′) and T^(2″) combine to form O (oxo); R¹¹ is H; and R^(12c) combines with R¹⁰ to form an optionally substituted C₂-C₉ heterocyclyl.

In some embodiments, at least one base has the structure of Formula b47:

or a pharmaceutically acceptable salt thereof, wherein

the dotted lines represent optional double bonds, provided that no more than one double bond is present, X, Y, and Z are independently O, NR⁴⁵, or CR⁴⁶R⁴⁷, and R⁴⁵, R⁴⁶, and R⁴⁷ are independently absent, hydrogen, or optionally substituted C₁-C₆ alkyl, provided that at least one of X, Y, and Z is O or NR⁴⁵.

In other embodiments, at least one base has the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b30:

or a pharmaceutically acceptable salt thereof, wherein

each of T¹ and T² is O (oxo); R^(12a) is H; and R^(12b) is optionally substituted amino or optionally substituted C₁₋₆ hydroxyalkyl.

In some embodiments, at least one base has the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b29:

or a pharmaceutically acceptable salt thereof, wherein

each of T¹ and T² is O (oxo); R^(12a) is H; and R^(Vb′) is optionally substituted C₅-C₁₀ aryl, optionally substituted C₃-C₉ heteroaryl, optionally substituted C₁-C₆ aminoalkyl, optionally substituted C₁-C₆ alkoxyalkyl, or optionally substituted C₁-C₆ hydroxyalkyl.

In certain embodiments, at least one base has the structure of Formula b52:

or a pharmaceutically acceptable salt thereof, wherein

n is 0, 1, 2, or 3, X is O or NR⁵⁹; R⁵⁶ and R⁵⁷ are independently hydrogen or optionally substituted C₁-C₆ alkyl, or combine to form an optionally substituted C₃-C₈ cycloalkyl; and R⁵⁸ and R⁵⁹ are independently hydrogen or optionally substituted C₁-C₆ alkyl.

In some embodiments, at least one base has the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base is replaced with a structure of Formula b44:

or a pharmaceutically acceptable salt thereof,

wherein each of R³⁰, R³¹, R³², R³³, and R³⁴ is independently hydrogen, fluoro, or optionally substituted C₁-C₆ alkyl.

In some embodiments, at least one base is replaced with the structure:

In other embodiments, at least one base is replaced with the structure:

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b46:

have the structure of Formula (b46):

or a pharmaceutically acceptable salt thereof,

wherein X^(a) is N or CR⁴¹;

R³⁶ is hydrogen, chloro, bromo, iodo, nitro, or optionally substituted C₁-C₆ alkyl;

R³⁷, R³⁸, R³⁹, and R⁴⁰ are independently hydrogen or fluoro; and

R⁴¹ is hydrogen or optionally substituted C₁-C₆ alkyl.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b7:

or a pharmaceutically acceptable salt thereof,

wherein

is a single or double bond;

T² is O (oxo); V³ is CR^(Va) and R^(Va) is H; W¹ is CR^(Wa) and R^(Wa) is H; W² is N; and R^(12a) and R^(12c) combine to form optionally substituted C₂-C₉ heterocyclyl.

In some embodiments, at least one base has the structure of Formula b48:

or a pharmaceutically acceptable salt thereof, wherein

the dotted lines represent optional double bonds, provided that no two double bonds are adjacent, X, Y, and Z are independently O, NR⁴⁵, or CR⁴⁶R⁴⁷, and R⁴⁵, R⁴⁶, and R⁴⁷ are independently absent, hydrogen, or optionally substituted C₁-C₆ alkyl.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b8:

or a pharmaceutically acceptable salt thereof, wherein

T^(1′) and T^(1″) combine to form O (oxo); R^(12b) is H; and R^(12a) and T² combine to form optionally substituted C₂-C₉ heterocyclyl.

In some embodiments, at least one base has the structure of Formula b49:

or a pharmaceutically acceptable salt thereof, wherein

the dotted lines represent optional double bonds, provided that no two double bonds are adjacent, X, Y, and Z are independently O, NR⁴⁵, or CR⁴⁶R⁴⁷, and R⁴⁵, R⁴⁶, and R⁴⁷ are independently absent, hydrogen or optionally substituted C₁-C₆ alkyl.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b47:

or a pharmaceutically acceptable salt thereof,

wherein X is N or CH;

R⁴² is hydrogen, chloro, bromo, iodo, nitro, or optionally substituted C₁-C₆ alkyl; and

R⁴³ and R⁴⁴ are independently hydrogen or optionally substituted C₁-C₆ alkyl.

In another aspect, the invention features a polynucleotide (e.g., an mRNA), wherein at least one base has the structure of Formula b20:

or a pharmaceutically acceptable salt thereof, wherein

V⁷ is N; R²⁷ is optionally substituted amino; R²⁵ is H, chloro, bromo, iodo, nitro, or optionally substituted C₁-C₆ alkyl; and R²⁹ is optionally substituted C₁-C₆ alkyl, optionally substituted C₆-C₁₀ aryl, or optionally substituted C₂-C₉ heteroaryl.

In certain embodiments, the polynucleotide includes at least one backbone moiety of Formula VIII-XII:

wherein the dashed line represents an optional double bond;

B is a nucleobase;

each of U and U′ is, independently, O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 (e.g., 0 or 1 for N(R^(U))_(nu) and 1 or 2 for C(R^(U))_(nu)) and each R^(U) is, independently, H, halo, or optionally substituted C₁-C₆ alkyl;

each of R^(1′), R^(2′), R^(1″), R^(2″), R¹, R^(3′), R⁴, R⁵, R⁶, and R⁷ is, independently, H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R⁵ can join together with one or more of R^(1′), R^(1″), R^(2′), or R^(2″) to form together with the carbons to which they are attached, an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl; or R⁴ can join together with one or more of R^(1′), R^(1″), R^(2″), R^(2″), R³, or R⁵ to form together with the carbons to which they are attached, provide an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl;

R³ is H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R³ can join together with one or more of R^(1′), R^(1″), R^(2′), R^(2″), and, taken together with the carbons to which they are attached, provide an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl; wherein if said optional double bond is present, R³ is absent;

each of m′ and m″ is, independently, an integer from 0 to 3;

each of q and r is independently, an integer from 0 to 5;

each of Y¹, Y², and Y³, is, independently, hydrogen, O, S, Se, —NR^(N1)—, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene, wherein R^(N1) is H, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, or optionally substituted C₅-C₁₀ aryl;

each Y⁴ is, independently, H, hydroxyl, protected hydroxyl, halo, thiol, boranyl, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, or absent; and

Y⁵ is O, S, Se, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene.

In some embodiments, the polynucleotide further includes:

(a) a 5′ UTR optionally including at least one Kozak sequence;

(b) a 3′ UTR; and

(c) at least one 5′ cap structure.

In other embodiments, the at least one 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.

In certain embodiments, the polynucleotide further includes a poly-A tail.

In some embodiments, the polynucleotide encodes a protein of interest.

In other embodiments, the polynucleotide is purified.

In certain embodiments, the polynucleotide is codon optimized.

In another aspect, the invention features an isolated polynucleotide (e.g., an mRNA) encoding a polypeptide of interest, the isolated polynucleotide including:

(a) a 5′ UTR optionally including at least one Kozak sequence;

(b) a 3′ UTR; and

(c) at least one 5′ cap structure,

wherein at least one base is 1-Methyl-3-(3-amino-3-carboxypropyl)pseudo-uracil, 5-Oxyacetic acid-methyl ester-uracil, 5-Trifluoromethyl-cytosine, 5-Trifluoromethyl-uracil, 5-Carboxymethylaminomethyl-2-thio-uracil, 5-Methylaminomethyl-2-thio-uracil, 5-Methoxy-carbonyl-methyl-uracil, 5-Oxyacetic acid-uracil, 3-(3-Amino-3-carboxypropyl)-uracil, 2-Amino-adenine, 8-Aza-adenine, Xanthosine, 5-Bromo-cytosine, 5-Aminoallyl-cytosine, 5-iodo-cytosine, 8-bromo-adenine, 8-bromo-guanine, N4-Benzoyl-cytosine, N4-Amino-cytosine, N6-Bz-adenine, N2-isobutyl-guanine, 5-Methylaminomethyl-2-thio-uracil, 5-Carbamoylmethyl-uracil, 1-Methyl-3-(3-amino-3-carboxypropyl) pseudo-uracil, 5-Methyldihydro-uracil, 5-(1-propynyl)cytosine, 5-Ethynylcytosine, 5-vinyl-uracil, (Z)-5-(2-Bromo-vinyl)-uracil, (E)-5-(2-Bromo-vinyl)-uracil, 5-Methoxy-cytosine, 5-Formyl-uracil, 5-Cyano-uracil, 5-Dimethylamino-uracil, 5-Cyano-cytosine, 5-Phenylethynyl-uracil, (E)-5-(2-Bromo-vinyl)-cytosine, 2-Mercapto-adenine, 2-Azido-adenine, 2-Fluoro-adenine, 2-Chloro-adenine, 2-Bromo-adenine, 2-Iodo-adenine, 7-Amino-1H-pyrazolo[4,3-d]pyrimidine, 2,4-dihydropyrazolo[4,3-d]pyrimidin-7-one, 2,4-dihydropyrazolo[4,3-d]pyrimidine-5,7-dione, pyrrolosine, 9-Deaza-adenine, 9-Deaza-guanine, 3-Deaza-adenine, 3-Deaza-3-chloro-adenine, 1-Deaza-adenine, 5-vinyl-cytosine, 5-phenyl-cytosine, 5-difluoromethyl-cytosine, 5-(1-propynyl)-uracil, 5-(1-propynyl)-cytosine, or 5-methoxymethyl-cytosine.

In some embodiments, at least one base is 1-Methyl-3-(3-amino-3-carboxypropyl)pseudo-uracil.

In other embodiments, at least one base is 5-Oxyacetic acid-methyl ester-uracil, 5-Trifluoromethyl-cytosine, 5-Trifluoromethyl-uracil, 5-Carboxymethylaminomethyl-2-thio-uracil, 5-Methylaminomethyl-2-thio-uracil, 5-Methoxy-carbonyl-methyl-uracil, 5-Oxyacetic acid-uracil, or 3-(3-Amino-3-carboxypropyl)-uracil.

In certain embodiments, at least one base is 2-Amino-adenine, 8-Aza-adenine, Xanthosine, 5-Bromo-cytosine, or 5-Aminoallyl-cytosine.

In some embodiments, at least one base is 5-iodo-cytosine, 8-bromo-adenine, 8-bromo-guanine, N4-Benzoyl-cytosine, N4-Amino-cytosine, N6-Bz-adenine, or N2-isobutyl-guanine.

In other embodiments, at least one base is 5-Methylaminomethyl-2-thio-uracil, 5-Carbamoylmethyl-uracil, 1-Methyl-3-(3-amino-3-carboxypropyl) pseudo-uracil, or 5-Methyldihydro-uracil.

In certain embodiments, at least one base is 5-(1-propynyl)cytosine, 5-Ethynylcytosine, 5-vinyl-uracil, (Z)-5-(2-Bromo-vinyl)-uracil, (E)-5-(2-Bromo-vinyl)-uracil, 5-Methoxy-cytosine, 5-Formyl-uracil, 5-Cyano-uracil, 5-Dimethylamino-uracil, 5-Cyano-cytosine, 5-Phenylethynyl-uracil, (E)-5-(2-Bromo-vinyl)-cytosine, 2-Mercapto-adenine, 2-Azido-adenine, 2-Fluoro-adenine, 2-Chloro-adenine, 2-Bromo-adenine, 2-Iodo-adenine, 7-Amino-1H-pyrazolo[4,3-d]pyrimidine, 2,4-dihydropyrazolo[4,3-d]pyrimidin-7-one, 2,4-dihydropyrazolo[4,3-d]pyrimidine-5,7-dione, pyrrolosine, 9-Deaza-adenine, 9-Deaza-guanine, 3-Deaza-adenine, 3-Deaza-3-chloro-adenine, or 1-Deaza-adenine.

In some embodiments, at least one base is 5-methoxy-uridine, 5-vinyl-cytosine, 5-phenyl-cytosine, 5-difluoromethyl-cytosine, or 5-methoxymethyl-cytosine.

In other embodiments, at least one base is 5-bromo-cytosine.

In certain embodiments, the polynucleotide further includes a poly-A tail.

In some embodiments, the polynucleotide is purified.

In other embodiments, the at least one 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.

In certain embodiments, the polynucleotide is codon optimized.

In another aspect, the invention features a compound of Formula I:

A-B,  Formula I

wherein A is:

wherein the dashed line represents an optional double bond;

each of U and U′ is, independently, O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 (e.g., 0 or 1 for N(R^(U))_(nu) and 1 or 2 for C(R^(U))_(nu)) and each R^(U) is, independently, H, halo, or optionally substituted C₁-C₆ alkyl;

each of R^(1′), R^(2′), R^(1″), R^(2″), R¹, R^(3′), R⁴, R⁵, R⁶, and R⁷ is, independently, H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R⁵ can join together with one or more of R^(1′), R^(1″), R^(2′), or R^(2″) to form together with the carbons to which they are attached, an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl; or R⁴ can join together with one or more of R^(1′), R^(1″), R^(2′), R^(2″), R³, or R⁵ to form together with the carbons to which they are attached, an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl;

R³ is H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R³ can join together with one or more of R^(1′), R^(1″), R^(2′), R^(2″), and, taken together with the carbons to which they are attached, provide an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl; wherein if said optional double bond is present, R³ is absent;

each of m′ and m″ is, independently, an integer from 0 to 3;

each of q and r is independently, an integer from 0 to 5;

each of Y¹, Y², and Y³, is, independently, hydrogen, O, S, Se, —NR^(N1)—, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene, wherein R^(N1) is H, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, or optionally substituted C₆-C₁₀ aryl;

each of Y⁴ and Y⁶ is, independently, H, hydroxyl, protected hydroxyl, halo, thiol, boranyl, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, or optionally substituted amino, or Y⁴ is absent;

Y⁵ is O, S, Se, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene; and

B is 1,6-Dimethyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(1-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(2-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-allyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-ethynyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-homoallyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-vinyl-pseudo-uracil, 1-Methyl-6-(2,2,2-Trifluoroethyl)pseudo-uracil, 1-Methyl-6-(4-morpholino)-pseudo-uracil, 1-Methyl-6-(4-thiomorpholino)-pseudo-uracil, 1-Methyl-6-(optionally substituted phenyl)pseudo-uracil, 1-Methyl-6-amino-pseudo-uracil, 1-Methyl-6-azido-pseudo-uracil, 1-Methyl-6-bromo-pseudo-uracil, 1-Methyl-6-butyl-pseudo-uracil, 1-Methyl-6-chloro-pseudo-uracil, 1-Methyl-6-cyano-pseudo-uracil, 1-Methyl-6-dimethylamino-pseudo-uracil, 1-Methyl-6-ethoxy-pseudo-uracil, 1-Methyl-6-ethylcarboxylate-pseudo-uracil, 1-Methyl-6-ethyl-pseudo-uracil, 1-Methyl-6-fluoro-pseudo-uracil, 1-Methyl-6-formyl-pseudo-uracil, 1-Methyl-6-hydroxyamino-pseudo-uracil, 1-Methyl-6-hydroxy-pseudo-uracil, 1-Methyl-6-iodo-pseudo-uracil, 1-Methyl-6-iso-propyl-pseudo-uracil, 1-Methyl-6-methoxy-pseudo-uracil, 1-Methyl-6-methylamino-pseudo-uracil, 1-Methyl-6-phenyl-pseudo-uracil, 1-Methyl-6-propyl-pseudo-uracil, 1-Methyl-6-tert-butyl-pseudo-uracil, 1-Methyl-6-trifluoromethoxy-pseudo-uracil, 1-Methyl-6-trifluoromethyl-pseudo-uracil, 6-(2,2,2-Trifluoroethyl)-pseudo-uracil, 6-(4-Morpholino)-pseudo-uracil, 6-(4-Thiomorpholino)-pseudo-uracil, 6-(optionally substituted-Phenyl)-pseudo-uracil, 6-Amino-pseudo-uracil, 6-Azido-pseudo-uracil, 6-Bromo-pseudo-uracil, 6-Butyl-pseudo-uracil, 6-Chloro-pseudo-uracil, 6-Cyano-pseudo-uracil, 6-Dimethylamino-pseudo-uracil, 6-Ethoxy-pseudo-uracil, 6-Ethylcarboxylate-pseudo-uracil, 6-Ethyl-pseudo-uracil, 6-Fluoro-pseudo-uracil, 6-Formyl-pseudo-uracil, 6-Hydroxyamino-pseudo-uracil, 6-Hydroxy-pseudo-uracil, 6-Iodo-pseudo-uracil, 6-iso-Propyl-pseudo-uracil, 6-Methoxy-pseudo-uracil, 6-Methylamino-pseudo-uracil, 6-Methyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Propyl-pseudo-uracil, 6-tert-Butyl-pseudo-uracil, 6-Trifluoromethoxy-pseudo-uracil, 6-Trifluoromethyl-pseudo-uracil, 1-(3-Amino-3-carboxypropyl)pseudo-uracil, 1-(2,2,2-Trifluoroethyl)-pseudo-uracil, 1-(2,4,6-Trimethyl-benzyl)pseudo-uracil, 1-(2,4,6-Trimethyl-phenyl)pseudo-uracil, 1-(2-Amino-2-carboxyethyl)pseudo-uracil, 1-(2-Amino-ethyl)pseudo-uracil, 1-(3-Amino-propyl)pseudo-uracil, 1-(4-Amino-4-carboxybutyl)pseudo-uracil, 1-(4-Amino-benzyl)pseudo-uracil, 1-(4-Amino-butyl)pseudo-uracil, 1-(4-Amino-phenyl)pseudo-uracil, 1-(4-Methoxy-benzyl)pseudo-uracil, 1-(4-Methoxy-phenyl)pseudo-uracil, 1-(4-Methyl-benzyl)pseudo-uracil, 1-(4-Nitro-benzyl)pseudo-uracil, 1(4-Nitro-phenyl)pseudo-uracil, 1-(5-Amino-pentyl)pseudo-uracil, 1-(6-Amino-hexyl)pseudo-uracil, 1-Aminomethyl-pseudo-uracil, 1-Benzyl-pseudo-uracil, 1-Butyl-pseudo-uracil, 1-Cyclobutylmethyl-pseudo-uracil, 1-Cyclobutyl-pseudo-uracil, 1-Cycloheptylmethyl-pseudo-uracil, 1-Cycloheptyl-pseudo-uracil, 1-Cyclohexylmethyl-pseudo-uracil, 1-Cyclohexyl-pseudo-uracil, 1-Cyclooctylmethyl-pseudo-uracil, 1-Cyclooctyl-pseudo-uracil, 1-Cyclopentylmethyl-pseudo-uracil, 1-Cyclopentyl-pseudo-uracil, 1-Cyclopropylmethyl-pseudo-uracil, 1-Cyclopropyl-pseudo-uracil, 1-Ethyl-pseudo-uracil, 1-Hexyl-pseudo-uracil, 1-iso-Propyl-pseudo-uracil 1-Pentyl-pseudo-uracil, 1-Phenyl-pseudo-uracil, 1-Propyl-pseudo-uracil, 1-p-toluyl-pseudo-uracil, 1-tert-Butyl-pseudo-uracil, 1-Trifluoromethyl-pseudo-uracil, 3-(optionally substituted C₁-C₆ Alkyl)-pseudo-uracil, Pseudo-uracil-N1-2-ethanoic acid, Pseudo-uracil-N1-3-propionic acid, Pseudo-uracil-N1-4-butanoic acid, Pseudo-uracil-N1-5-pentanoic acid, Pseudo-uracil-N1-6-hexanoic acid, Pseudo-uracil-N1-7-heptanoic acid, Pseudo-uracil-N1-methyl-p-benzoic acid, 6-phenyl-pseudo-uracil, 6-azido-pseudo-uracil, Pseudo-uracil-N1-p-benzoic acid, N3-Methyl-pseudo-uracil, 5-Methyl-amino-methyl-uracil, 5-Carboxy-methyl-amino-methyl-uracil, 5-(carboxyhydroxymethyl)uracil methyl ester 5-(carboxyhydroxymethyl)uracil, 2-anhydro-cytosine, 2-anhydro-uracil, 5-Methoxycarbonylmethyl-2-thio-uracil, 5-Methylaminomethyl-2-seleno-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-(iso-Pentenylaminomethyl)-2-thio-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-Trideuteromethyl-6-deutero-uracil, 5-(2-Chloro-phenyl)-2-thio-cytosine, 5-(4-Amino-phenyl)-2-thio-cytosine, 5-(2-Furanyl)-uracil, 8-Trifluoromethyl-adenine, 2-Trifluoromethyl-adenine, 3-Deaza-3-fluoro-adenine, 3-Deaza-3-bromo-adenine, 3-Deaza-3-iodo-adenine, 1-Hydroxymethyl-pseudo-uracil, 1-(2-Hydroxyethyl)-pseudo-uracil, 1-Methoxymethyl-pseudo-uracil, 1-(2-Methoxyethyl)-pseudo-uracil, 1-(2,2-Diethoxyethyl)-pseudo-uracil, 1-(2-Hydroxypropyl)-pseudo-uracil, (2R)-1-(2-Hydroxypropyl)-pseudo-uracil, (2S)-1-(2-Hydroxypropyl)-pseudo-uracil, 1-Cyanomethyl-pseudo-uracil, 1-Morpholinomethyl-pseudo-uracil, 1-Thiomorpholinomethyl-pseudo-uracil, 1-Benzyloxymethyl-pseudo-uracil, 1-(2,2,3,3,3-Pentafluoropropyl)-pseudo-uracil, 1-Thiomethoxymethyl-pseudo-uracil, 1-Methanesulfonylmethyl-pseudo-uracil, 1-Vinyl-pseudo-uracil, 1-Allyl-pseudo-uracil, 1-Homoallyl-pseudo-uracil, 1-Propargyl-pseudo-uracil, 1-(4-Fluorobenzyl)-pseudo-uracil, 1-(4-Chlorobenzyl)-pseudo-uracil, 1-(4-Bromobenzyl)-pseudo-uracil, 1-(4-Iodobenzyl)-pseudo-uracil, 1-(4-Methylbenzyl)-pseudo-uracil, 1-(4-Trifluoromethylbenzyl)-pseudo-uracil, 1-(4-Methoxybenzyl)-pseudo-uracil, 1-(4-Trifluoromethoxybenzyl)-pseudo-uracil, 1-(4-Thiomethoxybenzyl)-pseudo-uracil, 1-(4-Methanesulfonylbenzyl)-pseudo-uracil, Pseudo-uracil 1-(4-methylbenzoic acid), Pseudo-uracil 1-(4-methylbenzenesulfonic acid), 1-(2,4,6-Trimethylbenzyl)-pseudo-uracil, 1-(4-Nitrobenzyl)-pseudo-uracil, 1-(4-Azidobenzyl)-pseudo-uracil, 1-(3,4-Dimethoxybenzyl)-pseudo-uracil, 1-(3,4-Bis-trifluoromethoxybenzyl)-pseudo-uracil, 1-Acetyl-pseudo-uracil, 1-Trifluoroacetyl-pseudo-uracil, 1-Benzoyl-pseudo-uracil, 1-Pivaloyl-pseudo-uracil, 1-(3-Cyclopropyl-prop-2-ynyl)-pseudo-uracil, Pseudo-uracil 1-methylphosphonic acid diethyl ester, Pseudo-uracil 1-methylphosphonic acid, Pseudo-uracil 1-[3-(2-ethoxy)]propionic acid, Pseudo-uracil 1-[3-{2-(2-ethoxy)-ethoxy}] propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-(2-ethoxy)-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-{2(2-ethoxy)-ethoxy}-ethoxy]-ethoxy)-ethoxy}]propionic acid, 1-{3-[2-(2-Aminoethoxy)-ethoxy]-propionyl}pseudo-uracil, 1-[3-(2-{2-[2-(2-Aminoethoxy)-ethoxy]-ethoxy}-ethoxy)-propionyl]-pseudo-uracil, 1-Biotinyl-pseudo-uracil, 1-Biotinyl-PEG2-pseudo-uracil, 5-cyclopropyl-cytosine, 5-methyl-N6-acetyl-1-cytosine, 5-(carboxymethyl)-N6-trifluoroacetyl-cytosine trifluoromethyl ester, N6-propionyl-cytosine, 5-monofluoromethyl-cytosine, 5-trifluoromethoxy-cytosine, N6-(1,1,1-trifluoro-propionyl)-cytosine, 4-acetyl-pseudo-isocytosine, 1-ethyl-pseudo-isocytosine, 1-hydroxy-pseudo-isocytosine, or 1-(2,2,2-trifluoroethyl)-pseudo-uracil or has the structure:

or a salt thereof.

In some embodiments, B is 1,6-Dimethyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(1-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-(2-propynyl)-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-allyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-ethynyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-homoallyl-pseudo-uracil, 1-(optionally substituted C₁-C₆ Alkyl)-6-vinyl-pseudo-uracil, 1-Methyl-6-(2,2,2-Trifluoroethyl)pseudo-uracil, 1-Methyl-6-(4-morpholino)-pseudo-uracil, 1-Methyl-6-(4-thiomorpholino)-pseudo-uracil, 1-Methyl-6-(optionally substituted phenyl)pseudo-uracil, 1-Methyl-6-amino-pseudo-uracil, 1-Methyl-6-azido-pseudo-uracil, 1-Methyl-6-bromo-pseudo-uracil, 1-Methyl-6-butyl-pseudo-uracil, 1-Methyl-6-chloro-pseudo-uracil, 1-Methyl-6-cyano-pseudo-uracil, 1-Methyl-6-dimethylamino-pseudo-uracil, 1-Methyl-6-ethoxy-pseudo-uracil, 1-Methyl-6-ethylcarboxylate-pseudo-uracil, 1-Methyl-6-ethyl-pseudo-uracil, 1-Methyl-6-fluoro-pseudo-uracil, 1-Methyl-6-formyl-pseudo-uracil, 1-Methyl-6-hydroxyamino-pseudo-uracil, 1-Methyl-6-hydroxy-pseudo-uracil, 1-Methyl-6-iodo-pseudo-uracil, 1-Methyl-6-iso-propyl-pseudo-uracil, 1-Methyl-6-methoxy-pseudo-uracil, 1-Methyl-6-methylamino-pseudo-uracil, 1-Methyl-6-phenyl-pseudo-uracil, 1-Methyl-6-propyl-pseudo-uracil, 1-Methyl-6-tert-butyl-pseudo-uracil, 1-Methyl-6-trifluoromethoxy-pseudo-uracil, 1-Methyl-6-trifluoromethyl-pseudo-uracil, 6-(2,2,2-Trifluoroethyl)-pseudo-uracil, 6-(4-Morpholino)-pseudo-uracil, 6-(4-Thiomorpholino)-pseudo-uracil, 6-(Substituted-Phenyl)-pseudo-uracil, 6-Amino-pseudo-uracil, 6-Azido-pseudo-uracil, 6-Bromo-pseudo-uracil, 6-Butyl-pseudo-uracil, 6-Chloro-pseudo-uracil, 6-Cyano-pseudo-uracil, 6-Dimethylamino-pseudo-uracil, 6-Ethoxy-pseudo-uracil, 6-Ethylcarboxylate-pseudo-uracil, 6-Ethyl-pseudo-uracil, 6-Fluoro-pseudo-uracil, 6-Formyl-pseudo-uracil, 6-Hydroxyamino-pseudo-uracil, 6-Hydroxy-pseudo-uracil, 6-Iodo-pseudo-uracil, 6-iso-Propyl-pseudo-uracil, 6-Methoxy-pseudo-uracil, 6-Methylamino-pseudo-uracil, 6-Methyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Phenyl-pseudo-uracil, 6-Propyl-pseudo-uracil, 6-tert-Butyl-pseudo-uracil, 6-Trifluoromethoxy-pseudo-uracil, 6-Trifluoromethyl-pseudo-uracil, 1-(3-Amino-3-carboxypropyl)pseudo-uracil, 1-(2,2,2-Trifluoroethyl)-pseudo-uracil, 1-(2,4,6-Trimethyl-benzyl)pseudo-uracil, 1-(2,4,6-Trimethyl-phenyl)pseudo-uracil, 1-(2-Amino-2-carboxyethyl)pseudo-uracil, 1-(2-Amino-ethyl)pseudo-uracil, 1-(3-Amino-propyl)pseudo-uracil, 1-(4-Amino-4-carboxybutyl)pseudo-uracil, 1-(4-Amino-benzyl)pseudo-uracil, 1-(4-Amino-butyl)pseudo-uracil, 1-(4-Amino-phenyl)pseudo-uracil, 1-(4-Methoxy-benzyl)pseudo-uracil, 1-(4-Methoxy-phenyl)pseudo-uracil, 1-(4-Methyl-benzyl)pseudo-uracil, 1-(4-Nitro-benzyl)pseudo-uracil, 1(4-Nitro-phenyl)pseudo-uracil, 1-(5-Amino-pentyl)pseudo-uracil, 1-(6-Amino-hexyl)pseudo-uracil, 1-Aminomethyl-pseudo-uracil, 1-Benzyl-pseudo-uracil, 1-Butyl-pseudo-uracil, 1-Cyclobutylmethyl-pseudo-uracil, 1-Cyclobutyl-pseudo-uracil, 1-Cycloheptylmethyl-pseudo-uracil, 1-Cycloheptyl-pseudo-uracil, 1-Cyclohexylmethyl-pseudo-uracil, 1-Cyclohexyl-pseudo-uracil, 1-Cyclooctylmethyl-pseudo-uracil, 1-Cyclooctyl-pseudo-uracil, 1-Cyclopentylmethyl-pseudo-uracil, 1-Cyclopentyl-pseudo-uracil, 1-Cyclopropylmethyl-pseudo-uracil, 1-Cyclopropyl-pseudo-uracil, 1-Ethyl-pseudo-uracil, 1-Hexyl-pseudo-uracil, 1-iso-Propyl-pseudo-uracil, 1-Pentyl-pseudo-uracil, 1-Phenyl-pseudo-uracil, 1-Propyl-pseudo-uracil, 1-p-tolyl-pseudo-uracil, 1-tert-Butyl-pseudo-uracil, 1-Trifluoromethyl-pseudo-uracil, 3-(optionally substituted C₁-C₆ Alkyl)-pseudo-uracil, Pseudo-uracil-N1-2-ethanoic acid, Pseudo-uracil-N1-3-propionic acid, Pseudo-uracil-N1-4-butanoic acid, Pseudo-uracil-N1-5-pentanoic acid, Pseudo-uracil-N1-6-hexanoic acid, Pseudo-uracil-N1-7-heptanoic acid, Pseudo-uracil-N1-methyl-p-benzoic acid, 6-phenyl-pseudo-uracil, 6-azido-pseudo-uracil, or Pseudo-uracil-N1-p-benzoic acid.

In other embodiments, B is N3-Methyl-pseudo-uracil, 5-Methyl-amino-methyl-uracil, 5-Carboxy-methyl-amino-methyl-uracil, 5-(carboxyhydroxymethyl)uracil methyl ester or 5-(carboxyhydroxymethyl)uracil.

In certain embodiments, B is 2-anhydro-cytosine hydrochloride or 2-anhydro-uracil.

In some embodiments, B is 5-Methoxycarbonylmethyl-2-thio-uracil, 5-Methylaminomethyl-2-seleno-uracil, 5-(iso-Pentenylaminomethyl)-uracil, 5-(iso-Pentenylaminomethyl)-2-thio-uracil, or 5-(iso-Pentenylaminomethyl)-uracil.

In other embodiments, B is 5-Trideuteromethyl-6-deutero-uracil, 5-(2-Chloro-phenyl)-2-thio-cytosine, 5-(4-Amino-phenyl)-2-thio-cytosine, 5-(2-Furanyl)-uracil, N4-methyl-cytosine, 8-Trifluoromethyl-adenine, 2-Trifluoromethyl-adenine, 3-Deaza-3-fluoro-adenine, 3-Deaza-3-bromo-adenine, or 3-Deaza-3-iodo-adenine.

In certain embodiments, B is 1-Hydroxymethyl-pseudo-uracil, 1-(2-Hydroxyethyl)-pseudo-uracil, 1-Methoxymethyl-pseudo-uracil, 1-(2-Methoxyethyl)-pseudo-uracil, 1-(2,2-Diethoxyethyl)-pseudo-uracil, (±)1-(2-Hydroxypropyl)-pseudo-uracil, (2R)-1-(2-Hydroxypropyl)-pseudo-uracil, (2S)-1-(2-Hydroxypropyl)-pseudo-uracil, 1-Cyanomethyl-pseudo-uracil, 1-Morpholinomethyl-pseudo-uracil, 1-Thiomorpholinomethyl-pseudo-uracil, 1-Benzyloxymethyl-pseudo-uracil, 1-(2,2,3,3,3-Pentafluoropropyl)-pseudo-uracil, 1-Thiomethoxymethyl-pseudo-uracil, 1-Methanesulfonylmethyl-pseudo-uracil, 1-Vinyl-pseudo-uracil, 1-Allyl-pseudo-uracil, 1-Homoallyl-pseudo-uracil, 1-Propargyl-pseudo-uracil, 1-(4-Fluorobenzyl)-pseudo-uracil, 1-(4-Chlorobenzyl)-pseudo-uracil, 1-(4-Bromobenzyl)-pseudo-uracil, 1-(4-Iodobenzyl)-pseudo-uracil, 1-(4-Methylbenzyl)-pseudo-uracil, 1-(4-Trifluoromethylbenzyl)-pseudo-uracil, 1-(4-Methoxybenzyl)-pseudo-uracil, 1-(4-Trifluoromethoxybenzyl)-pseudo-uracil, 1-(4-Thiomethoxybenzyl)-pseudo-uracil, 1-(4-Methanesulfonylbenzyl)-pseudo-uracil, Pseudo-uracil 1-(4-methylbenzoic acid), Pseudo-uracil 1-(4-methylbenzenesulfonic acid), 1-(2,4,6-Trimethylbenzyl)-pseudo-uracil, 1-(4-Nitrobenzyl)-pseudo-uracil, 1-(4-Azidobenzyl)-pseudo-uracil, 1-(3,4-Dimethoxybenzyl)-pseudo-uracil, 1-(3,4-Bis-trifluoromethoxybenzyl)-pseudo-uracil, 1-Acetyl-pseudo-uracil, 1-Trifluoroacetyl-pseudo-uracil, 1-Benzoyl-pseudo-uracil, 1-Pivaloyl-pseudo-uracil, 1-(3-Cyclopropyl-prop-2-ynyl)-pseudo-uracil, Pseudo-uracil 1-methylphosphonic acid diethyl ester, Pseudo-uracil 1-methylphosphonic acid, Pseudo-uracil 1-[3-(2-ethoxy)]propionic acid, Pseudo-uracil 1-[3-{2-(2-ethoxy)-ethoxy}] propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-(2-ethoxy)-ethoxy]-ethoxy)-ethoxy}]propionic acid, Pseudo-uracil 1-[3-{2-(2-[2-{2(2-ethoxy)-ethoxy}-ethoxy]-ethoxy)-ethoxy}]propionic acid, 1-{3-[2-(2-Aminoethoxy)-ethoxy]-propionyl} pseudo-uracil, 1-[3-(2-{2-[2-(2-Aminoethoxy)-ethoxy]-ethoxy}-ethoxy)-propionyl]-pseudo-uracil, 1-Biotinyl-pseudo-uracil, or 1-Biotinyl-PEG2-pseudo-uracil.

In some embodiments, B is 5-cyclopropyl-cytosine, 5-methyl-N6-acetyl-1-cytosine, 5-(carboxymethyl)-N6-trifluoroacetyl-cytosine trifluoromethyl ester, N6-propionyl-cytosine, 5-monofluoromethyl-cytosine, 5-trifluoromethoxy-cytosine, N6-(1,1,1-trifluoro-propionyl)-cytosine, 4-acetyl-pseudo-isocytosine, 1-ethyl-pseudo-isocytosine, or 1-hydroxy-pseudo-isocytosine.

In some embodiments, B has the structure:

In other embodiments, B is 1-(2,2,2-trifluoroethyl)-pseudo-uracil.

In certain embodiments, A has the structure of Formula II.

In some embodiments, m′ is 0.

In other embodiments, m″ is 1.

In certain embodiments, R⁴ is hydrogen.

In some embodiments, A is:

wherein U is O, S, N(R^(U))_(nu), or C(R^(U))_(nu) wherein nu is an integer from 0 to 2 (e.g., 0 or 1 for N(R^(U))_(nu), and 1 or 2 for C(R^(U))_(nu)) and each R^(U) is, independently, H, halo, or optionally substituted C₁-C₆ alkyl;

each of R^(1′), R^(2″), and R⁵ is, independently, H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R⁵ can join together with one or more of R^(1″) or R^(2″) to form together with the carbons to which they are attached, an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl; or;

R³ is H, halo, hydroxy, thiol, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, optionally substituted amino, azido, optionally substituted C₆-C₁₀ aryl; or R³ can join together with one or more of R^(1″) or R^(2″), and, taken together with the carbons to which they are attached, provide an optionally substituted C₃-C₉ heterocyclyl or an optionally substituted C₃-C₉ cycloalkyl;

each of q and r is independently, an integer from 0 to 5;

each of Y¹, Y², and Y³, is, independently, hydrogen, O, S, Se, —NR^(N1)—, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene, wherein R^(N1) is H, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, or optionally substituted C₆-C₁₀ aryl; and

each of Y⁴ and Y⁶ is, independently, H, hydroxyl, protected hydroxyl, halo, thiol, boranyl, optionally substituted C₁-C₆ alkyl, optionally substituted C₂-C₆ alkenyl, optionally substituted C₂-C₆ alkynyl, optionally substituted C₁-C₆ heteroalkyl, optionally substituted C₂-C₆ heteroalkenyl, optionally substituted C₂-C₆ heteroalkynyl, or optionally substituted amino, or Y⁴ is absent; and

Y⁵ is O, S, Se, optionally substituted C₁-C₆ alkylene, or optionally substituted C₁-C₆ heteroalkylene.

In some embodiments, R^(2″) is hydroxyl.

In other embodiments, R^(1″) is hydrogen.

In certain embodiments, R³ is hydrogen and R⁵ is hydrogen.

In some embodiments, R³ is hydrogen and R⁵ is optionally substituted C₂-C₆ alkynyl.

In other embodiments, the optionally substituted C₂-C₆ alkynyl is ethynyl.

In certain embodiments, R⁵ is hydrogen.

In some embodiments, R³ is azido or optionally substituted C₂-C₆ alkynyl.

In other embodiments, R³ is azido.

In certain embodiments, R³ is optionally substituted C₂-C₆ alkynyl, wherein said optionally substituted C₂-C₆ alkynyl is ethynyl.

In some embodiments, R³ is hydrogen and R⁵ is hydrogen.

In other embodiments, R^(1″) is optionally substituted C₁-C₆ alkyl or optionally substituted C₂-C₆ alkynyl.

In certain embodiments, R^(1″) is optionally substituted C₁-C₆ alkyl, wherein said optionally substituted C₁-C₆ alkyl is trifluoromethyl.

In some embodiments, R^(1″) is optionally substituted C₂-C₆ alkynyl, wherein said optionally substituted C₂-C₆ alkynyl is ethynyl.

In other embodiments, R^(2″) is hydrogen.

In certain embodiments, R³ is hydrogen.

In some embodiments, R⁵ is hydrogen.

In other embodiments, R^(1″) is halo, thiol, optionally substituted C₁-C₆ heteroalkyl, azido, or amino.

In certain embodiments, halo is fluoro, chloro, bromo, or iodo.

In some embodiments, optionally substituted C₁-C₆ heteroalkyl is thiomethoxy.

In other embodiments, R³ is hydrogen.

In certain embodiments, R⁵ is hydrogen.

In some embodiments, R^(1″) is hydroxy.

In other embodiments, R^(2″) is hydrogen, optionally substituted C₁-C₆ alkyl, or optionally substituted C₂-C₆ alkynyl.

In certain embodiments, optionally substituted C₁-C₆ alkyl is trifluoromethyl.

In some embodiments, optionally substituted C₂-C₆ alkynyl is ethynyl.

In other embodiments, R^(1″) is hydrogen.

In certain embodiments, R^(2″) is thiol, optionally substituted C₁-C₆ heteroalkyl, azido, or amino.

In some embodiments, optionally substituted C₁-C₆ heteroalkyl is thiomethoxy.

In other embodiments, R^(1″) is halo.

In certain embodiments, halo is fluoro.

In some embodiments, R^(2″) is halo.

In other embodiments, halo is fluoro.

In certain embodiments, U is C(R^(U))_(nu).

In some embodiments, nu is 2.

In other embodiments, each R^(u) is hydrogen.

In certain embodiments, q is 0 and Y⁶ is hydroxyl.

In some embodiments, R⁵ is hydroxyl.

In other embodiments, Y⁵ is optionally substituted C₁-C₆ alkylene.

In certain embodiments, optionally substituted C₁-C₆ alkylene is methylene.

In some embodiments, r is 0 and Y⁶ is hydroxyl.

In other embodiments, r is 3; each Y¹, Y³, and Y⁴ is O; and Y⁶ is hydroxyl.

In certain embodiments, r is 3, each Y¹ and Y⁴ is O; and Y⁶ is hydroxyl.

In some embodiments, at least one Y³ is S.

In some embodiments, the nucleobase is selected from a naturally occurring nucleobase or a non-naturally occurring nucleobase.

In some embodiments, the naturally occurring nucleobase is selected from the group consisting of pseudouracil or N1-methylpseudouracil.

In some embodiments, the nucleoside is not pseudouridine (ψ) or 5-methyl-cytidine (m5C).

The present invention provides polynucleotides (e.g., mRNAs) which may be isolated and/or purified. These polynucleotides may encode one or more polypeptides of interest and comprise a sequence of n number of linked nucleosides or nucleotides including at least one alternative nucleoside or nucleotide as compared to the chemical structure of an A, G, U or C nucleoside or nucleotide. The polynucleotides may also contain a 5′ UTR optionally including at least one Kozak sequence, a 3′ UTR, and at least one 5′ cap structure. The isolated polynucleotides may further contain a poly-A tail and may be purified.

In some embodiments, multiple alterations are included in the alternative nucleic acid or in one or more individual nucleoside or nucleotide. For example, alterations to a nucleoside may include one or more alterations to the nucleobase, the sugar, and/or the internucleoside linkage.

In some embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: 5-methoxy-uridine-alpha-thio-TP, 5-methyl-cytidine-alpha-thio-TP, pseudouridine-alpha-thio-TP, 1-methyl-pseudouridine-alpha-thio-TP, 1-ethyl-pseudouridine-TP, 1-propyl-pseudouridine-TP, 1-(2,2,2-trifluoroethyl)-pseudouridine-TP, 2-amino-adenosine-TP, xanthosine, 5-bromo-cytidine, 5-aminoallyl-cytidine-TP, or 2-aminopurine-riboside-TP. It will be understood that after incorporation of the triphosphate, the internucleoside linkage will be a monophosphate.

In certain embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: pseudouridine-alpha-thio-TP, 1-methyl-pseudouridine-alpha-thio-TP, 1-ethyl-pseudouridine-TP, 1-propyl-pseudouridine-TP, 5-bromo-cytidine, 5-aminoallyl-cytidine-TP, or 2-aminopurine-riboside-TP.

In other embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: pseudouridine-alpha-thio-TP, 1-methyl-pseudouridine-alpha-thio-TP, or 5-bromo-cytidine-TP.

In other embodiments, the isolated polynucleotide includes at least two alternative nucleosides or nucleotides.

In certain embodiments having at least two alterations, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of at least one of each of 5-bromo-cytidine-TP and 1-methyl-pseudouridine-TP or 5-methoxy-uridine-alpha-thio-TP and 5-methyl-cytidine-alpha-thio-TP.

In other embodiments having at least two alterations, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of at least one of each of 5-bromo-cytidine-TP and pseudouridine-TP.

In some embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: 2-thio-pseudouridine-TP, 5-trifluoromethyl-uridine-TP, 5-trifluoromethyl-cytidine-TP, 3-methyl-pseudouridine, 5-methyl-2-thio-uridine-TP, N4-methyl-cytidine-TP, 5-hydroxymethyl-cytidine-TP, 3-methyl-cytidine-TP, 5-oxyacetic acid methyl ester-uridine-TP, 5-methoxycarbonylmethyl-uridine-TP, 5-methylaminomethyl-uridine-TP, 5-methoxy-uridine-TP, N1-methyl-guanosine-TP, 8-aza-adenosine-TP, 2-thio-uridine-TP, 5-bromo-uridine-TP, 2-thio-cytidine-TP, alpha-thio-cytidine-TP, 5-aminoallyl-uridine-TP, alpha-thio-uridine-TP, or 4-thio-uridine-TP.

In other embodiments having at least two alterations, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of at least one of each of 5-trifluoromethyl-cytidine-TP and 1-methyl-pseudouridine-TP; 5-hydroxymethyl-cytidine-TP and 1-methyl-pseudouridine-TP; 5-trifluoromethyl-cytidine-TP and pseudouridine-TP; or N4-acetyl-cytidine-TP and 5-methoxy-uridine-TP.

In some embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: 2-thio-pseudouridine-TP, 5-trifluoromethyl-cytidine-TP, 5-methyl-2-thio-uridine-TP, 5-hydroxymethyl-cytidine-TP, 5-oxyacetic acid methyl ester-uridine-TP, 5-methoxy-uridine-TP, N4-acetyl-cytidine-TP, 2-thio-uridine-TP, 5-bromo-uridine-TP, alpha-thio-cytidine-TP, 5-aminoallyl-uridine-TP, or alpha-thio-uridine-TP.

In other embodiments having at least two alterations, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of at least one of each of 5-trifluoromethyl-cytidine-TP and 1-methyl-pseudouridine-TP or 5-hydroxymethyl-cytidine-TP and 1-methyl-pseudouridine-TP.

In some embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: 2-thio-pseudouridine-TP, 5-trifluoromethyl-cytidine-TP, 5-methyl-2-thio-uridine-TP, N4-methyl-cytidine-TP, 5-hydroxymethyl-cytidine-TP, 5-oxyacetic acid methyl ester-uridine-TP, 5-methoxycarbonylmethyl-uridine-TP, 5-methoxy-uridine-TP, 2-thio-uridine-TP, 5-bromo-uridine-TP, alpha-thio-cytidine-TP, 5-aminoallyl-uridine-TP, or alpha-thio-uridine-TP.

In some embodiments having at least one alteration, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of: 2-thio-pseudouridine-TP, 5-trifluoromethyl-cytidine-TP, 5-hydroxymethyl-cytidine-TP, or 5-methoxy-uridine-TP.

In other embodiments having at least two alterations, the polynucleotide includes a backbone moiety containing the nucleobase, sugar, and internucleoside linkage of at least one of each of N4-acetyl-cytidine-TP and 5-methoxy-uridine-TP.

The present invention also provides for pharmaceutical compositions including the alternative polynucleotides described herein. These may also further include one or more pharmaceutically acceptable excipients selected from a solvent, aqueous solvent, non-aqueous solvent, dispersion media, diluent, dispersion, suspension aid, surface active agent, isotonic agent, thickening or emulsifying agent, preservative, lipid, lipidoids liposome, lipid nanoparticle, core-shell nanoparticles, polymer, lipoplexed peptide, protein, cell, hyaluronidase, and mixtures thereof. In certain embodiments, the mRNA is formulated in lipid nanoparticles.

Methods of using the polynucleotides and alternative nucleic acids of the invention are also provided. In this instance, the polynucleotides may be formulated by any means known in the art or administered via any of several routes including injection by intradermal, subcutaneous or intramuscular means.

Administration of the alternative nucleic acids of the invention may be via two or more equal or unequal split doses. In some embodiments, the level of the polypeptide produced by the subject by administering split doses of the polynucleotide is greater than the levels produced by administering the same total daily dose of polynucleotide as a single administration.

Detection of the alternative nucleic acids or the encoded polypeptides may be performed in the hair or bodily fluid of the subject or patient where the bodily fluid is selected from the group consisting of peripheral blood, serum, plasma, ascites, urine, cerebrospinal fluid (CSF), sputum, saliva, bone marrow, synovial fluid, aqueous humor, amniotic fluid, cerumen, breast milk, broncheoalveolar lavage fluid, semen, prostatic fluid, cowper's fluid or pre-ejaculatory fluid, sweat, fecal matter, tears, cyst fluid, pleural and peritoneal fluid, pericardial fluid, lymph, chyme, chyle, bile, interstitial fluid, menses, pus, sebum, vomit, vaginal secretions, mucosal secretion, stool water, pancreatic juice, lavage fluids from sinus cavities, bronchopulmonary aspirates, blastocyl cavity fluid, and umbilical cord blood.

In some embodiments, administration is according to a dosing regimen which occurs over the course of hours, days, weeks, months, or years and may be achieved by using one or more devices selected from multi-needle injection systems, catheter or lumen systems, and ultrasound, electrical or radiation based systems.

The names of nucleobases correspond to the name given to the base when part of a nucleoside or nucleotide. For example, “pseudo-uracil” refers to the nucleobase of pseudouridine and “pseudo-isocytosine” refers to the nucleobase of pseudoisocytidine.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Methods and materials are described herein for use in the present disclosure; other, suitable methods and materials known in the art can also be used. The materials, methods, and examples are illustrative only and not intended to be limiting. All publications, patent applications, patents, sequences, database entries, and other references mentioned herein are incorporated by reference in their entirety. In case of conflict, the present specification, including definitions, will control.

Other features and advantages of the present disclosure will be apparent from the following detailed description and figures, and from the claims.

DETAILED DESCRIPTION

The present disclosure provides, inter alia, alternative nucleosides, alternative nucleotides, and alternative nucleic acids that exhibit improved therapeutic properties including, but not limited to, a reduced innate immune response when introduced into a population of cells.

As there remains a need in the art for therapeutic modalities to address the myriad of barriers surrounding the efficacious modulation of intracellular translation and processing of nucleic acids encoding polypeptides or fragments thereof, the inventors have shown that certain alternative mRNA sequences have the potential as therapeutics with benefits beyond just evading, avoiding or diminishing the immune response.

The present invention addresses this need by providing nucleic acid based compounds or polynucleotides (e.g., alternative mRNAs) which encode a polypeptide of interest (e.g., alternative mRNA) and which have structural and/or chemical features that avoid one or more of the problems in the art, for example, features which are useful for optimizing nucleic acid-based therapeutics while retaining structural and functional integrity, overcoming the threshold of expression, improving expression rates, half life and/or protein concentrations, optimizing protein localization, and avoiding deleterious bio-responses such as the immune response and/or degradation pathways.

In particular, the inventors have identified that mRNA wherein a relatively low proportion of the uracils (such as from 10% to 50%, 15% to 35% or about 25%) are 5-methoxy-uracil and a relatively high proportion of the cytosines are 5-methyl-cytosine (such as from 50% to 100%, 75% to 100% or about 100%) may be particularly effective for use in therapeutic compositions, because they may benefit from both high expression levels and limited induction of the innate immune response, as shown in the Examples (in particular, high performance may be observed across the assays in Examples 83-87).

Polypeptides of interest, according to the present invention, may be selected from any of those disclosed in US 2013/0259924, US 2013/0259923, WO 2013/151663, WO 2013/151669, WO 2013/151670, WO 2013/151664, WO 2013/151665, WO 2013/151736, U.S. Provisional Patent Application No. 61/618,862, U.S. Provisional Patent Application No. 61/681,645, U.S. Provisional Patent Application No. 61/618,873, U.S. Provisional Patent Application No. 61/681,650, U.S. Provisional Patent Application No. 61/618,878, U.S. Provisional Patent Application No. 61/681,654, U.S. Provisional Patent Application No. 61/618,885, U.S. Provisional Patent Application No. 61/681,658, U.S. Provisional Patent Application No. 61/618,911, U.S. Provisional Patent Application No. 61/681,667, U.S. Provisional Patent Application No. 61/618,922, U.S. Provisional Patent Application No. 61/681,675, U.S. Provisional Patent Application No. 61/618,935, U.S. Provisional Patent Application No. 61/681,687, U.S. Provisional Patent Application No. 61/618,945, U.S. Provisional Patent Application No. 61/681,696, U.S. Provisional Patent Application No. 61/618,953, and U.S. Provisional Patent Application No. 61/681,704, the polypeptides of each of which are incorporated herein by reference in their entirety.

Provided herein, in part, are polynucleotides encoding polypeptides of interest which have been chemically modified to improve one or more of the stability and/or clearance in tissues, receptor uptake and/or kinetics, cellular access by the compositions, engagement with translational machinery, mRNA half-life, translation efficiency, immune evasion, protein production capacity, secretion efficiency (when applicable), accessibility to circulation, protein half-life and/or modulation of a cell's status, function and/or activity.

The alternative nucleosides, nucleotides, and nucleic acids of the invention, including the combination of alterations taught herein have superior properties making them more suitable as therapeutic modalities.

It has been determined that the “all or none” model in the art is sorely insufficient to describe the biological phenomena associated with the therapeutic utility of alternative mRNA. The present inventors have determined that to improve protein production, one may consider the nature of the alteration, or combination of alterations, the percent alteration and survey more than one cytokine or metric to determine the efficacy and risk profile of a particular alternative mRNA.

In one aspect of the invention, methods of determining the effectiveness of an alternative mRNA as compared to unaltered involves the measure and analysis of one or more cytokines whose expression is triggered by the administration of the exogenous nucleic acid of the invention. These values are compared to administration of an unaltered nucleic acid or to a standard metric such as cytokine response, PolyIC, R-848 or other standard known in the art.

One example of a standard metric developed herein is the measure of the ratio of the level or amount of encoded polypeptide (protein) produced in the cell, tissue or organism to the level or amount of one or more (or a panel) of cytokines whose expression is triggered in the cell, tissue or organism as a result of administration or contact with the alternative nucleic acid. Such ratios are referred to herein as the Protein:Cytokine Ratio or “PC” Ratio. The higher the PC ratio, the more efficacious the alternative nucleic acid (polynucleotide encoding the protein measured). Preferred PC Ratios, by cytokine, of the present invention may be greater than 1, greater than 10, greater than 100, greater than 1000, greater than 10,000 or more. Alternative nucleic acids having higher PC Ratios than an alternative nucleic acid of a different or unaltered construct are preferred.

The PC ratio may be further qualified by the percent alteration present in the polynucleotide. For example, normalized to a 100% alternative nucleic acid, the protein production as a function of cytokine (or risk) or cytokine profile can be determined.

In one embodiment, the present invention provides a method for determining, across chemistries, cytokines or percent alteration, the relative efficacy of any particular alternative polynucleotide by comparing the PC Ratio of the alternative nucleic acid (polynucleotide).

In another embodiment, the alternative mRNA are substantially non toxic and non mutagenic.

In one embodiment, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids can be chemically modified, thereby disrupting interactions, which may cause innate immune responses. Further, these alternative nucleosides, alternative nucleotides, and alternative nucleic acids can be used to deliver a payload, e.g., detectable or therapeutic agent, to a biological target. For example, the nucleic acids can be covalently linked to a payload, e.g. a detectable or therapeutic agent, through a linker attached to the nucleobase or the sugar moiety. The compositions and methods described herein can be used, in vivo and in vitro, both extracellularly and intracellularly, as well as in assays such as cell free assays.

In another aspect, the present disclosure provides chemical alterations located on the sugar moiety of the nucleotide.

In another aspect, the present disclosure provides chemical alterations located on the phosphate backbone of the nucleic acid.

In another aspect, the present disclosure provides nucleotides that contain chemical alterations, wherein the nucleotide reduces the cellular innate immune response, as compared to the cellular innate immune induced by a corresponding unaltered nucleic acid.

In another aspect, the present disclosure provides compositions comprising a compound as described herein. In some embodiments, the composition is a reaction mixture. In some embodiments, the composition is a pharmaceutical composition. In some embodiments, the composition is a cell culture. In some embodiments, the composition further comprises an RNA polymerase and a cDNA template. In some embodiments, the composition further comprises a nucleotide selected from the group consisting of adenosine, cytidine, guanosine, and uridine.

In a further aspect, the present disclosure provides methods of making a pharmaceutical formulation comprising a physiologically active secreted protein, comprising transfecting a first population of human cells with the pharmaceutical nucleic acid made by the methods described herein, wherein the secreted protein is active upon a second population of human cells.

In some embodiments, the secreted protein is capable of interacting with a receptor on the surface of at least one cell present in the second population.

In certain embodiments, provided herein are combination therapeutics containing one or more alternative nucleic acids containing translatable regions that encode for a protein or proteins that boost a mammalian subject's immunity along with a protein that induces antibody-dependent cellular toxicity.

In one embodiment, it is intended that the compounds of the present disclosure are stable. It is further appreciated that certain features of the present disclosure, which are, for clarity, described in the context of separate embodiments, can also be provided in combination in a single embodiment. Conversely, various features of the present disclosure which are, for brevity, described in the context of a single embodiment, can also be provided separately or in any suitable subcombination.

Alternative Nucleotides, Nucleosides and Polynucleotides of the Invention

Herein, in a nucleotide, nucleoside or polynucleotide (such as the nucleic acids of the invention, e.g., mRNA molecule), the terms “alteration” or, as appropriate, “alternative” refer to alteration with respect to A, G, U or C ribonucleotides. Generally, herein, these terms are not intended to refer to the ribonucleotide alterations in naturally occurring 5′-terminal mRNA cap moieties. In a polypeptide, the term “alteration” refers to a alteration as compared to the canonical set of 20 amino acids, moiety)

The alterations may be various distinct alterations. In some embodiments, where the nucleic acid is an mRNA, the coding region, the flanking regions and/or the terminal regions may contain one, two, or more (optionally different) nucleoside or nucleotide alterations. In some embodiments, an alternative polynucleotide introduced to a cell may exhibit reduced degradation in the cell, as compared to an unaltered polynucleotide.

The polynucleotides can include any useful alteration, such as to the sugar, the nucleobase, or the internucleoside linkage (e.g. to a linking phosphate/to a phosphodiester linkage/to the phosphodiester backbone). In certain embodiments, alterations (e.g., one or more alterations) are present in each of the sugar and the internucleoside linkage. Alterations according to the present invention may be alterations of ribonucleic acids (RNAs) to deoxyribonucleic acids (DNAs), e.g., the substitution of the 2′OH of the ribofuranosyl ring to 2′H, threose nucleic acids (TNAs), glycol nucleic acids (GNAs), peptide nucleic acids (PNAs), locked nucleic acids (LNAs) or hybrids thereof). Additional alterations are described herein.

As described herein, the polynucleotides of the invention do not substantially induce an innate immune response of a cell into which the polynucleotide (e.g., mRNA) is introduced. Features of an induced innate immune response include 1) increased expression of pro-inflammatory cytokines, 2) activation of intracellular PRRs (e.g., RIG-I, MDA5) and/or 3) termination or reduction in protein translation.

In certain embodiments, it may desirable for an alternative nucleic acid molecule introduced into the cell to be degraded intracellularly. For example, degradation of an alternative nucleic acid molecule may be preferable if precise timing of protein production is desired. Thus, in some embodiments, the invention provides an alternative nucleic acid molecule containing a degradation domain, which is capable of being acted on in a directed manner within a cell.

The polynucleotides can optionally include other agents (e.g., RNAi-inducing agents, RNAi agents, siRNAs, shRNAs, miRNAs, antisense RNAs, ribozymes, catalytic DNA, tRNA, RNAs that induce triple helix formation, aptamers, and vectors). In some embodiments, the polynucleotides may include one or more messenger RNAs (mRNAs) having one or more alternative nucleoside or nucleotides (i.e., alternative mRNA molecules). Details for these polynucleotides follow.

Polynucleotides

According to Aduri et al (Journal of Chemical Theory and Computation. 2006. 3(4):1464-75) there are 107 naturally occurring nucleosides, including 1-methyladenosine, 2-methylthio-N6-hydroxynorvalyl carbamoyladenosine, 2-methyladenosine, 2-O-ribosylphosphate adenosine, N6-methyl-N6-threonylcarbamoyladenosine, N6-acetyladenosine, N6-glycinylcarbamoyladenosine, N6-isopentenyladenosine, N6-methyladenosine, N6-threonylcarbamoyladenosine, N6,N6-dimethyladenosine, N6-(cis-hydroxyisopentenyl)adenosine, N6-hydroxynorvalylcarbamoyladenosine, 1,2-O-dimethyladenosine, N6,2-O-dimethyladenosine, 2-O-methyladenosine, N6,N6,O-2-trimethyladenosine, 2-methylthio-N6-(cis-hydroxyisopentenyl) adenosine, 2-methylthio-N6-methyladenosine, 2-methylthio-N6-isopentenyladenosine, 2-methylthio-N6-threonyl carbamoyladenosine, 2-thiocytidine, 3-methylcytidine, N4-acetylcytidine, 5-formylcytidine, N4-methylcytidine, 5-methylcytidine, 5-hydroxymethylcytidine, lysidine, N4-acetyl-2-O-methylcytidine, 5-formyl-2-O-methylcytidine, 5,2-O-dimethylcytidine, 2-O-methylcytidine, N4,2-O-dimethylcytidine, N4,N4,2-O-trimethylcytidine, 1-methylguanosine, N2,7-dimethylguanosine, N2-methylguanosine, 2-O-ribosylphosphate guanosine, 7-methylguanosine, under modified hydroxywybutosine, 7-aminomethyl-7-deazaguanosine, 7-cyano-7-deazaguanosine, N2,N2-dimethylguanosine, 4-demethylwyosine, epoxyqueuosine, hydroxywybutosine, isowyosine, N2,7,2-O-trimethylguanosine, N2,2-O-dimethylguanosine, 1,2-O-dimethylguanosine, 2-O-methylguanosine, N2,N2,2-O-trimethylguanosine, N2,N2,7-trimethylguanosine, peroxywybutosine, galactosyl-queuosine, mannosyl-queuosine, queuosine, archaeosine, wybutosine, methylwyosine, wyosine, 2-thiouridine, 3-(3-amino-3-carboxypropyl)uridine, 3-methyluridine, 4-thiouridine, 5-methyl-2-thiouridine, 5-methylaminomethyluridine, 5-carboxymethyluridine, 5-carboxymethylaminomethyluridine, 5-hydroxyuridine, 5-methyluridine, 5-taurinomethyluridine, 5-carbamoylmethyluridine, 5-(carboxyhydroxymethyl)uridine methyl ester, dihydrouridine, 5-methyldihydrouridine, 5-methylaminomethyl-2-thiouridine, 5-(carboxyhydroxymethyl)uridine, 5-(isopentenylaminomethyl)uridine, 5-(isopentenylaminomethyl)-2-thiouridine, 3,2-O-dimethyluridine, 5-carboxymethylaminomethyl-2-O-methyluridine, 5-carbamoylmethyl-2-O-methyluridine, 5-methoxycarbonylmethyl-2-O-methyluridine, 5-(isopentenylaminomethyl)-2-O-methyluridine, 5,2-O-dimethyluridine, 2-O-methyluridine, 2-thio-2-O-methyluridine, uridine 5-oxyacetic acid, 5-methoxycarbonylmethyluridine, uridine 5-oxyacetic acid methyl ester, 5-methoxyuridine, 5-aminomethyl-2-thiouridine, 5-carboxymethylaminomethyl-2-thiouridine, 5-methylaminomethyl-2-selenouridine, 5-methoxycarbonylmethyl-2-thiouridine, 5-taurinomethyl-2-thiouridine, pseudouridine, 1-methyl-3-(3-amino-3-carboxypropyl)pseudouridine, 1-methylpseudouridine, 3-methylpseudouridine, 2-O-methylpseudouridine, inosine, 1-methylinosine, 1,2-O-dimethylinosine and 2-O-methylinosine. Each of these may be components of nucleic acids of the present invention.

The polynucleotides of the invention includes a first region of linked nucleosides encoding a polypeptide of interest, a first flanking region located at the 5′ terminus of the first region, and a second flanking region located at the 3′ terminus of the first region.

In some embodiments, the polynucleotide (e.g., the first region, first flanking region, or second flanking region) includes n number of linked nucleosides having Formula (Ia) or Formula (la-1):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein U is O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl;

- - - is a single bond or absent;

each of R^(1′), R^(2′), R^(1″), R^(2″), R³, R⁴, and R⁵, if present, is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, or absent; wherein the combination of R³ with one or more of R^(1′), R^(1″), R^(2′), R^(2″), or R⁵ (e.g., the combination of R^(1′) and R³, the combination of R^(1″) and R³, the combination of R^(2′) and R³, the combination of R^(2″) and R³, or the combination of R⁵ and R³) can join together to form, together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl; wherein the combination of R⁵ with one or more of R^(1′), R^(1″), R^(2′), or R^(2″) (e.g., the combination of R^(1′) and R⁵, the combination of R^(1″) and R⁵, the combination of R^(2′) and R⁵, or the combination of R^(2″) and R⁵) can join together to form, together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl; and wherein the combination of R⁴ and one or more of R^(1′), R^(1″), R^(2′), R^(2″), R³, or R⁵ can join together to form, together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl;

each of m′ and m″ is, independently, an integer from 0 to 3 (e.g., from 0 to 2, from 0 to 1, from 1 to 3, or from 1 to 2);

each of Y¹, Y², and Y³, is, independently, O, S, Se, —NR^(N1)—, optionally substituted alkylene, or optionally substituted heteroalkylene, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl;

each Y⁴ is, independently, H, hydroxy, thiol, boranyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino;

each Y⁵ is O, S, Se, optionally substituted alkylene (e.g., methylene), or optionally substituted heteroalkylene;

n is an integer from 1 to 100,000; and

B is a nucleobase (e.g., a purine, a pyrimidine, or derivatives thereof), wherein the combination of B and R^(1′), the combination of B and R^(2′), the combination of B and R^(1″), or the combination of B and R^(2″) can, taken together with the carbons to which they are attached, optionally form a bicyclic group (e.g., a bicyclic heterocyclyl) or wherein the combination of B, R^(1″), and R³ or the combination of B, R^(2″), and R³ can optionally form a tricyclic or tetracyclic group (e.g., a tricyclic or tetracyclic heterocyclyl, such as in Formula (IIo)-(IIp) herein).

In some embodiments, the polynucleotide includes an alternative ribose. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (Ia-2)-(Ia-5) or a pharmaceutically acceptable salt or stereoisomer thereof.

In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (Ib) or Formula (Ib-1):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

U is O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl;

- - - is a single bond or absent;

each of R¹, R^(3′), R^(3″), and R⁴ is, independently, H, halo, hydroxy, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and wherein the combination of R¹ and R^(3′) or the combination of R¹ and R^(3″) can be taken together to form, together with the carbons to which they are attached, an optionally substituted heterocycle or cycloalkyl (e.g., to produce a locked nucleic acid);

each R⁵ is, independently, H, halo, hydroxy, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, or optionally substituted alkoxyalkoxy;

each of Y¹, Y², and Y³ is, independently, O, S, Se, NR^(N1)—, optionally substituted alkylene, or optionally substituted heteroalkylene, wherein R^(N) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl;

each Y⁴ is, independently, H, hydroxy, thiol, boranyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted alkoxyalkoxy, or optionally substituted amino;

n is an integer from 1 to 100,000; and

B is a nucleobase.

In some embodiments, the polynucleotide (e.g., the first region, first flanking region, or second flanking region) includes n number of linked nucleosides having Formula (Ic):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

U is O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl;

- - - is a single bond or absent;

each of B¹, B², and B³ is, independently, a nucleobase (e.g., a purine, a pyrimidine, or derivatives thereof, as described herein), H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl, wherein one and only one of B¹, B², and B³ is a nucleobase;

each of R^(b1), R^(b2), R^(b3), R³, and R⁵ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl;

each of Y¹, Y², and Y³, is, independently, O, S, Se, —NR^(N1)—, optionally substituted alkylene, or optionally substituted heteroalkylene, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl;

each Y⁴ is, independently, H, hydroxy, thiol, boranyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino;

each Y⁵ is O, S, Se, optionally substituted alkylene (e.g., methylene), or optionally substituted heteroalkylene;

n is an integer from 1 to 100,000; and

wherein the ring including U can include one or more double bonds.

In particular embodiments, the ring including U does not have a double bond between U—CB³R^(b3) or between CB³R^(b3)—C^(B2)R^(b2).

In some embodiments, the polynucleotide (e.g., the first region, first flanking region, or second flanking region) includes n number of linked nucleosides having Formula (Id):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein U is O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl;

each R³ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl;

each of Y¹, Y², and Y³, is, independently, O, S, Se, —NR^(N1)—, optionally substituted alkylene, or optionally substituted heteroalkylene, wherein R^(N) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl;

each Y⁴ is, independently, H, hydroxy, thiol, boranyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino;

each Y⁵ is O, S, optionally substituted alkylene (e.g., methylene), or optionally substituted heteroalkylene;

n is an integer from 1 to 100,000; and

B is a nucleobase (e.g., a purine, a pyrimidine, or derivatives thereof).

In some embodiments, the polynucleotide (e.g., the first region, first flanking region, or second flanking region) includes n number of linked nucleosides having Formula (Ie):

or a pharmaceutically acceptable salt or stereoisomer thereof,

wherein each of U′ and U″ is, independently, O, S, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl;

each R⁶ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl;

each Y^(5′) is, O, S, optionally substituted alkylene (e.g., methylene or ethylene), or optionally substituted heteroalkylene;

n is an integer from 1 to 100,000; and

B is a nucleobase (e.g., a purine, a pyrimidine, or derivatives thereof).

In some embodiments, the polynucleotide (e.g., the first region, first flanking region, or second flanking region) includes n number of linked nucleosides having Formula (If) or (If-1):

or a pharmaceutically acceptable salt or stereoisomer thereof,

wherein each of U′ and U″ is, independently, O, S, N, N(R^(U))_(nu), or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl (e.g., U′ is O and U″ is N);

- - - is a single bond or absent;

each of R^(1′), R^(2′), R^(1″), R^(2″), R³, and R⁴ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and wherein the combination of R^(1′) and R³, the combination of R^(1″) and R³, the combination of R^(2′) and R³, or the combination of R^(2″) and R³ can be taken together to form, with the carbons to which they are attached, an optionally substituted heterocycle or cycloalkyl (e.g., to produce a locked nucleic acid); each of m′ and m″ is, independently, an integer from 0 to 3 (e.g., from 0 to 2, from 0 to 1, from 1 to 3, or from 1 to 2);

each of Y¹, Y², and Y³, is, independently, O, S, Se, —NR^(N1)—, optionally substituted alkylene, or optionally substituted heteroalkylene, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl;

each Y⁴ is, independently, H, hydroxy, thiol, boranyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino;

each Y⁵ is O, S, Se, optionally substituted alkylene (e.g., methylene), or optionally substituted heteroalkylene;

n is an integer from 1 to 100,000; and

B is a nucleobase (e.g., a purine, a pyrimidine, or derivatives thereof).

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), the ring including U has one or two double bonds.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each of R¹, R^(1′), and R^(1″), if present, is H. In further embodiments, each of R², R^(2′), and R2, if present, is, independently, H, halo (e.g., fluoro), hydroxy, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy. In particular embodiments, alkoxyalkoxy is —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl). In some embodiments, s2 is 0, s1 is 1 or 2, s3 is 0 or 1, and R′ is C₁₋₆ alkyl.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each of R², R^(2′), and R^(2″), if present, is H. In further embodiments, each of R¹, R^(1′), and R¹, if present, is, independently, H, halo (e.g., fluoro), hydroxy, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy. In particular embodiments, alkoxyalkoxy is —(CH₂)_(s2)(OCH₂CH₂)_(s1) (CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl). In some embodiments, s2 is 0, s1 is 1 or 2, s3 is 0 or 1, and R′ is C₁₋₆ alkyl.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each of R³, R⁴, and R⁵ is, independently, H, halo (e.g., fluoro), hydroxy, optionally substituted alkyl, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy. In particular embodiments, R³ is H, R⁴ is H, R⁵ is H, or R³, R⁴, and R⁵ are all H. In particular embodiments, R³ is C₁₋₆ alkyl, R⁴ is C₁₋₆ alkyl, R⁵ is C₁₋₆ alkyl, or R³, R⁴, and R⁵ are all C₁₋₆ alkyl. In particular embodiments, R³ and R⁴ are both H, and R⁵ is C₁₋₆ alkyl.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), R³ and R⁵ join together to form, taken together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl, such as trans-3′,4′ analogs, wherein R³ and R⁵ join together to form a heterocycle (e.g., a heterocycle including the structure-(CH₂)_(b1)O(CH₂)_(b2)O(CH₂)_(b3)—, wherein each of b1, b2, and b3 are, independently, an integer from 0 to 3).

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), R³ and one or more of R^(1′), R^(1″), R^(2′), R^(2″), or R⁵ join together to form, taken together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl,

R³ and one or more of R^(1′), R^(1″), R^(2′), R^(2″), or R⁵ join together to form a heterocycle (e.g., a heterocycle including the structure —(CH₂)_(b1)O(CH₂)_(b2)O(CH₂)_(b3)—, wherein each of b1, b2, and b3 are, independently, an integer from 0 to 3).

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), R⁵ and one or more of R^(1′), R^(1″), R^(2′), or R^(2″) join together to form together with the carbons to which they are attached, an optionally substituted heterocyclyl (e.g., a bicyclic, tricyclic, or tetracyclic heterocyclyl) or cycloalkyl, R⁵ and one or more of R^(1′), R^(1″), R^(2′), or R^(2″) join together to form a heterocycle (e.g., a heterocycle including the structure —(CH₂)_(b1)O(CH₂)_(b2)O(CH₂)_(b3)—, wherein each of b1, b2, and b3 are, independently, an integer from 0 to 3).

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each Y² is, independently, 0, S, or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl. In particular embodiments, Y² is NR^(N1)—, wherein R^(N1) is H or optionally substituted alkyl (e.g., C₁₋₆ alkyl, such as methyl, ethyl, isopropyl, or n-propyl).

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each Y³ is, independently, O or S.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), R¹ is H; each R² is, independently, H, halo (e.g., fluoro), hydroxy, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, such as wherein s2 is 0, s1 is 1 or 2, s3 is 0 or 1, and R′ is C₁₋₆ alkyl); each Y² is, independently, O or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl (e.g., wherein R^(N1) is H or optionally substituted alkyl (e.g., C₁₋₆ alkyl, such as methyl, ethyl, isopropyl, or n-propyl)); and each Y³ is, independently, O or S (e.g., S). In further embodiments, R³ is H, halo (e.g., fluoro), hydroxy, optionally substituted alkyl, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy. In yet further embodiments, each Y¹ is, independently, O or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl (e.g., wherein R^(N1) is H or optionally substituted alkyl (e.g., C₁₋₆ alkyl, such as methyl, ethyl, isopropyl, or n-propyl)); and each Y⁴ is, independently, H, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), each R¹ is, independently, H, halo (e.g., fluoro), hydroxy, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, such as wherein s2 is 0, s1 is 1 or 2, s3 is 0 or 1, and R′ is C₁₋₆ alkyl); R² is H; each Y² is, independently, O or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl (e.g., wherein R^(N1) is H or optionally substituted alkyl (e.g., C₁₋₆ alkyl, such as methyl, ethyl, isopropyl, or n-propyl)); and each Y³ is, independently, O or S (e.g., S). In further embodiments, R³ is H, halo (e.g., fluoro), hydroxy, optionally substituted alkyl, optionally substituted alkoxy (e.g., methoxy or ethoxy), or optionally substituted alkoxyalkoxy. In yet further embodiments, each Y¹ is, independently, O or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl (e.g., wherein R^(N1) is H or optionally substituted alkyl (e.g., C₁₋₆ alkyl, such as methyl, ethyl, isopropyl, or n-propyl)); and each Y⁴ is, independently, H, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted thioalkoxy, optionally substituted alkoxyalkoxy, or optionally substituted amino.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), the ring including U is in the β-D (e.g., β-D-ribo) configuration.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), the ring including U is in the α-L (e.g., α-L-ribo) configuration.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), one or more B is not pseudouracil (ψ) or 5-methyl-cytosine (m⁵C).

In some embodiments, about 10% to about 100% of n number of B nucleobases is not ψ or m⁵C (e.g., from 10% to 20%, from 10% to 35%, from 10% to 50%, from 10% to 60%, from 10% to 75%, from 10% to 90%, from 10% to 95%, from 10% to 98%, from 10% to 99%, from 20% to 35%, from 20% to 50%, from 20% to 60%, from 20% to 75%, from 20% to 90%, from 20% to 95%, from 20% to 98%, from 20% to 99%, from 20% to 100%, from 50% to 60%, from 50% to 75%, from 50% to 90%, from 50% to 95%, from 50% to 98%, from 50% to 99%, from 50% to 100%, from 75% to 90%, from 75% to 95%, from 75% to 98%, from 75% to 99%, and from 75% to 100% of n number of B is not ψ or m⁵C). In some embodiments, B is not ψ or m⁵C.

In some embodiments of the polynucleotides (e.g., Formulas (Ia)-(Ia-5), (Ib)-(If-1), (IIa)-(IIp), (IIb-1), (IIb-2), (IIc-1)-(IIc-2), (IIn-1), (IIn-2), (IVa)-(IVl), and (IXa)-(IXr)), when B is an unaltered nucleobase selected from cytosine, guanine, uracil and adenine, then at least one of Y¹, Y², or Y³ is not O.

In some embodiments, the polynucleotide includes an alternative ribose. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIa)-(IIc):

or a pharmaceutically acceptable salt or stereoisomer thereof. In particular embodiments, U is O or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl (e.g., U is —CH₂— or —CH—). In other embodiments, each of R¹, R², R³, R⁴, and R⁵ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, or absent (e.g., each R¹ and R² is, independently H, halo, hydroxy, optionally substituted alkyl, or optionally substituted alkoxy; each R³ and R⁴ is, independently, H or optionally substituted alkyl; and R⁵ is H or hydroxy), and

is a single bond or double bond.

In particular embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIb-1)-(IIb-2):

or a pharmaceutically acceptable salt or stereoisomer thereof. In some embodiments, U is O or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl (e.g., U is —CH₂— or —CH—). In other embodiments, each of R¹ and R² is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, or absent (e.g., each R¹ and R² is, independently, H, halo, hydroxy, optionally substituted alkyl, or optionally substituted alkoxy, e.g., H, halo, hydroxy, alkyl, or alkoxy). In particular embodiments, R² is hydroxy or optionally substituted alkoxy (e.g., methoxy, ethoxy, or any described herein).

In particular embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIc-1)-(IIc-4):

or a pharmaceutically acceptable salt or stereoisomer thereof.

In some embodiments, U is O or C(R^(U))_(nu), wherein nu is an integer from 0 to 2 and each R^(U) is, independently, H, halo, or optionally substituted alkyl (e.g., U is —CH₂— or —CH—). In some embodiments, each of R¹, R², and R³ is, independently, H, halo, hydroxy, thiol, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted hydroxyalkoxy, optionally substituted amino, azido, optionally substituted aryl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, or absent (e.g., each R¹ and R² is, independently, H, halo, hydroxy, optionally substituted alkyl, or optionally substituted alkoxy, e.g., H, halo, hydroxy, alkyl, or alkoxy; and each R³ is, independently, H or optionally substituted alkyl)). In particular embodiments, R² is optionally substituted alkoxy (e.g., methoxy or ethoxy, or any described herein). In particular embodiments, R¹ is optionally substituted alkyl, and R² is hydroxy. In other embodiments, R¹ is hydroxy, and R² is optionally substituted alkyl. In further embodiments, R³ is optionally substituted alkyl.

In some embodiments, the polynucleotide includes an acyclic alternative ribose. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIg)-(IIf):

or a pharmaceutically acceptable salt or stereoisomer thereof.

In some embodiments, the polynucleotide includes an acyclic alternative hexitol. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIg)-(IIj):

or a pharmaceutically acceptable salt or stereoisomer thereof.

In some embodiments, the polynucleotide includes a sugar moiety having a contracted or an expanded ribose ring. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIk)-(IIm):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each of R^(1′), R^(1″), R^(2′), and R^(2″) is, independently, H, halo, hydroxy, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, or absent; and wherein the combination of R^(2′) and R³ or the combination of R^(2″) and R³ can be taken together to form optionally substituted alkylene or optionally substituted heteroalkylene.

In some embodiments, the polynucleotide includes a locked alternative ribose. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIn):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein R^(3′) is O, S, or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl and R³ is optionally substituted alkylene (e.g., —CH₂—, —CH₂CH₂—, or —CH₂CH₂CH₂—) or optionally substituted heteroalkylene (e.g., —CH₂NH—, —CH₂CH₂NH—, —CH₂OCH₂—, or —CH₂CH₂OCH₂—) (e.g., R^(3′) is O and R³ is optionally substituted alkylene (e.g., —CH₂—, —CH₂CH₂—, or —CH₂CH₂CH₂—)).

In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIn-1)-(II-n2):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein R^(3′) is O, S, or —NR^(N1)—, wherein R^(N1) is H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted aryl and R^(3″) is optionally substituted alkylene (e.g., —CH₂—, —CH₂CH₂—, or —CH₂CH₂CH₂—) or optionally substituted heteroalkylene (e.g., —CH₂NH—, —CH₂CH₂NH—, —CH₂OCH₂—, or —CH₂CH₂OCH₂—) (e.g., R^(3′) is O and R^(3″) is optionally substituted alkylene (e.g., —CH₂—, —CH₂CH₂—, or —CH₂CH₂CH₂—)).

In some embodiments, the polynucleotide includes a locked alternative ribose that forms a tetracyclic heterocyclyl. In some embodiments, the polynucleotide (e.g., the first region, the first flanking region, or the second flanking region) includes n number of linked nucleosides having Formula (IIo):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein R^(12a), R^(12c), T^(1′), T^(1″), T^(2′), T^(2″), V¹, and V³ are as described herein.

Any of the formulas for the polynucleotides can include one or more nucleobases described herein (e.g., Formulas (b1)-(b43)).

In one embodiment, the present invention provides methods of preparing a polynucleotide comprising at least one nucleotide, wherein the polynucleotide comprises n number of nucleosides having Formula (Ia), as defined herein:

the method comprising reacting a compound of Formula (IIIa), as defined herein:

with an RNA polymerase, and a cDNA template.

In one embodiment, the present invention provides methods of preparing a polynucleotide comprising at least one nucleotide, wherein the polynucleotide comprises n number of nucleosides having Formula (Ia-1), as defined herein:

the method comprising reacting a compound of Formula (IIIa-1), as defined herein:

with an RNA polymerase, and a cDNA template.

In a further embodiment, the present invention provides methods of amplifying a polynucleotide comprising at least one nucleotide (e.g., alternative mRNA molecule), the method comprising: reacting a compound of Formula (IIIa-1), as defined herein, with a primer, a cDNA template, and an RNA polymerase.

In one embodiment, the present invention provides methods of preparing a polynucleotide comprising at least one nucleotide, wherein the polynucleotide comprises n number of nucleosides having Formula (Ia-2), as defined herein:

the method comprising reacting a compound of Formula (IIIa-2), as defined herein:

with an RNA polymerase, and a cDNA template.

In a further embodiment, the present invention provides methods of amplifying a polynucleotide comprising at least one nucleotide (e.g., alternative mRNA molecule), the method comprising reacting a compound of Formula (IIIa-2), as defined herein, with a primer, a cDNA template, and an RNA polymerase.

In some embodiments, the reaction may be repeated from 1 to about 7,000 times. In any of the embodiments herein, B may be a nucleobase of Formula (b1)-(b43).

The polynucleotides can optionally include 5′ and/or 3′ flanking regions, which are described herein.

Alternative Nucleotides and Nucleosides

The present invention also includes the building blocks, e.g., alternative ribonucleosides, alternative ribonucleotides, of the polynucleotides, e.g., alternative RNA (or mRNA) molecules. For example, these building blocks can be useful for preparing the polynucleotides of the invention. In some embodiments, the building block molecule has Formula (IIIa) or (IIIa-1):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein the substituents are as described herein (e.g., for Formula (Ia) and (Ia-1)), and wherein when B is an unaltered nucleobase selected from cytosine, guanine, uracil and adenine, then at least one of Y², or Y³ is not 0.

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide, has Formula (IVa)-(IVb):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)).

In particular embodiments, Formula (IVa) or (IVb) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)). In particular embodiments, Formula (IVa) or (IVb) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)). In particular embodiments, Formula (IVa) or (IVb) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)). In particular embodiments, Formula (IVa) or (IVb) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide, has Formula (IVc)-(IVk):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)).

In particular embodiments, one of Formulas (IVc)-(IVk) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)).

In particular embodiments, one of Formulas (IVc)-(IVk) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)).

In particular embodiments, one of Formulas (IVc)-(IVk) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)).

In particular embodiments, one of Formulas (IVc)-(IVk) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In other embodiments, the building block molecule, which may be incorporated into a polynucleotide has Formula (Va) or (Vb):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)).

In other embodiments, the building block molecule, which may be incorporated into a polynucleotide has Formula (IXa)-(IXd):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)).

In particular embodiments, one of Formulas (IXa)-(IXd) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)). In particular embodiments, one of Formulas (IXa)-(IXd) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)).

In particular embodiments, one of Formulas (IXa)-(IXd) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)).

In particular embodiments, one of Formulas (IXa)-(IXd) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In other embodiments, the building block molecule, which may be incorporated into a polynucleotide has Formula (IXe)-(IXg):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)).

In particular embodiments, one of Formulas (IXe)-(IXg) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)).

In particular embodiments, one of Formulas (IXe)-(IXg) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)).

In particular embodiments, one of Formulas (IXe)-(IXg) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)).

In particular embodiments, one of Formulas (IXe)-(IXg) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In other embodiments, the building block molecule, which may be incorporated into a polynucleotide has Formula (IXh)-(IXk):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein B is as described herein (e.g., any one of (b1)-(b43)). In particular embodiments, one of Formulas (IXh)-(IXk) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)). In particular embodiments, one of Formulas (IXh)-(IXk) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)).

In particular embodiments, one of Formulas (IXh)-(IXk) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)). In particular embodiments, one of Formulas (IXh)-(IXk) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In other embodiments, the building block molecule, which may be incorporated into a polynucleotide has Formula (IXl)-(IXr):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r1 and r2 is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5) and B is as described herein (e.g., any one of (b1)-(b43)).

In particular embodiments, one of Formulas (IXl)-(IXr) is combined with an alternative uracil (e.g., any one of formulas (b1)-(b9), (b21)-(b23), and (b28)-(b31), such as formula (b1), (b8), (b28), (b29), or (b30)).

In particular embodiments, one of Formulas (IXl)-(IXr) is combined with an alternative cytosine (e.g., any one of formulas (b10)-(b14), (b24), (b25), and (b32)-(b36), such as formula (b10) or (b32)).

In particular embodiments, one of Formulas (IXl)-(IXr) is combined with an alternative guanine (e.g., any one of formulas (b15)-(b17) and (b37)-(b40)). In particular embodiments, one of Formulas (IXl)-(IXr) is combined with an alternative adenine (e.g., any one of formulas (b18)-(b20) and (b41)-(b43)).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide can be selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide can be selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5) and s1 is as described herein.

In some embodiments, the building block molecule, which may be incorporated into a nucleic acid (e.g., RNA, mRNA, polynucleotide), is an alternative uridine (e.g., selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein Y¹, Y³, Y⁴, Y⁶, and r are as described herein (e.g., each r is, independently, an integer from 0 to 5, such as from 0 to 3, from 1 to 3, or from 1 to 5)).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide is an alternative cytidine (e.g., selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein Y¹, Y³, Y⁴, Y⁶, and r are as described herein (e.g., each r is, independently, an integer from 0 to 5, such as from 0 to 3, from 1 to 3, or from 1 to 5)). For example, the building block molecule, which may be incorporated into a polynucleotide can be:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide is an alternative adenosine (e.g., selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein Y¹, Y³, Y⁴, Y⁶, and r are as described herein (e.g., each r is, independently, an integer from 0 to 5, such as from 0 to 3, from 1 to 3, or from 1 to 5)).

In some embodiments, the building block molecule, which may be incorporated into a polynucleotide, is an alternative guanosine (e.g., selected from the group consisting of:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein Y¹, Y³, Y⁴, Y⁶, and r are as described herein (e.g., each r is, independently, an integer from 0 to 5, such as from 0 to 3, from 1 to 3, or from 1 to 5)).

In some embodiments, the chemical alteration can include replacement of the C group at C-5 of the ring (e.g., for a pyrimidine nucleoside, such as cytosine or uracil) with N (e.g., replacement of the >CH group at C-5 with >NR^(N1) group, wherein R^(N1) is H or optionally substituted alkyl). For example, the building block molecule, which may be incorporated into a polynucleotide can be:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5).

In another embodiment, the chemical alteration can include replacement of the hydrogen at C-5 of cytosine with halo (e.g., Br, Cl, F, or I) or optionally substituted alkyl (e.g., methyl). For example, the building block molecule, which may be incorporated into a polynucleotide can be:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5).

In yet a further embodiment, the chemical alteration can include a fused ring that is formed by the NH₂ at the C-4 position and the carbon atom at the C-5 position. For example, the building block molecule, which may be incorporated into a polynucleotide can be:

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein each r is, independently, an integer from 0 to 5 (e.g., from 0 to 3, from 1 to 3, or from 1 to 5).

Alterations on the Sugar

The alternative nucleosides and nucleotides (e.g., building block molecules), which may be incorporated into a polynucleotide (e.g., RNA or mRNA, as described herein), can be altered on the sugar of the ribonucleic acid. For example, the 2′ hydroxyl group (OH) can be modified or replaced with a number of different substituents. Exemplary substitutions at the 2′-position include, but are not limited to, H, halo, optionally substituted C₁₋₆ alkyl; optionally substituted C₁₋₆ alkoxy; optionally substituted C₆₋₁₀ aryloxy; optionally substituted C₃₋₈ cycloalkyl; optionally substituted C₃₋₈ cycloalkoxy; optionally substituted C₆₋₁₀ aryloxy; optionally substituted C₆₋₁₀ aryl-C₁₋₆ alkoxy, optionally substituted C₁₋₁₂ (heterocyclyl)oxy; a sugar (e.g., ribose, pentose, or any described herein); a polyethyleneglycol (PEG), —O(CH₂CH₂O)_(n)CH₂CH₂OR, where R is H or optionally substituted alkyl, and n is an integer from 0 to 20 (e.g., from 0 to 4, from 0 to 8, from 0 to 10, from 0 to 16, from 1 to 4, from 1 to 8, from 1 to 10, from 1 to 16, from 1 to 20, from 2 to 4, from 2 to 8, from 2 to 10, from 2 to 16, from 2 to 20, from 4 to 8, from 4 to 10, from 4 to 16, and from 4 to 20); “locked” nucleic acids (LNA) in which the 2′-hydroxyl is connected by a C₁₋₆ alkylene or C₁₋₆ heteroalkylene bridge to the 4′-carbon of the same ribose sugar, where exemplary bridges include methylene, propylene, ether, or amino bridges; aminoalkyl, as defined herein; aminoalkoxy, as defined herein; amino as defined herein; and amino acid, as defined herein

Generally, RNA includes the sugar group ribose, which is a 5-membered ring having an oxygen. Exemplary, non-limiting alternative nucleotides include replacement of the oxygen in ribose (e.g., with S, Se, or alkylene, such as methylene or ethylene); addition of a double bond (e.g., to replace ribose with cyclopentenyl or cyclohexenyl); ring contraction of ribose (e.g., to form a 4-membered ring of cyclobutane or oxetane); ring expansion of ribose (e.g., to form a 6- or 7-membered ring having an additional carbon or heteroatom, such as for anhydrohexitol, altritol, mannitol, cyclohexanyl, cyclohexenyl, and morpholino that also has a phosphoramidate backbone); multicyclic forms (e.g., tricyclo; and “unlocked” forms, such as glycol nucleic acid (GNA) (e.g., R-GNA or S-GNA, where ribose is replaced by glycol units attached to phosphodiester bonds), threose nucleic acid (TNA, where ribose is replace with α-L-threofuranosyl-(3′→2′)), and peptide nucleic acid (PNA, where 2-amino-ethyl-glycine linkages replace the ribose and phosphodiester backbone). The sugar group can also contain one or more carbons that possess the opposite stereochemical configuration than that of the corresponding carbon in ribose. Thus, a polynucleotide molecule can include nucleotides containing, e.g., arabinose, as the sugar.

Alterations on the Nucleobase

The present disclosure provides for alternative nucleosides and nucleotides. As described herein “nucleoside” is defined as a compound containing a sugar molecule (e.g., a pentose or ribose) or derivative thereof in combination with an organic base (e.g., a purine or pyrimidine) or a derivative thereof (also referred to herein as “nucleobase”). As described herein, “nucleotide” is defined as a nucleoside including a phosphate group.

Exemplary non-limiting alterations include an amino group, a thiol group, an alkyl group, a halo group, or any described herein. The alternative nucleotides may by synthesized by any useful method, as described herein (e.g., chemically, enzymatically, or recombinantly to include one or more alternative or non-natural nucleosides).

The alternative nucleotide base pairing encompasses not only the standard adenine-thymine, adenine-uracil, or guanine-cytosine base pairs, but also base pairs formed between nucleotides and/or alternative nucleotides comprising non-standard or alternative bases, wherein the arrangement of hydrogen bond donors and hydrogen bond acceptors permits hydrogen bonding between a non-standard base and a standard base or between two complementary non-standard base structures. One example of such non-standard base pairing is the base pairing between the alternative nucleotide inosine and adenosine, cytidine or uridine.

The alternative nucleosides and nucleotides can include an alternative nucleobase. Examples of nucleobases found in RNA include, but are not limited to, adenine, guanine, cytosine, and uracil. Examples of nucleobase found in DNA include, but are not limited to, adenine, guanine, cytosine, and thymine. These nucleobases can be altered or wholly replaced to provide polynucleotide molecules having enhanced properties, e.g., resistance to nucleases, stability, and these properties may manifest through disruption of the binding of a major groove binding partner.

Table 1 below identifies the chemical faces of each canonical nucleotide. Circles identify the atoms comprising the respective chemical regions.

TABLE 1 Chemical faces of each canonical nucleotide. Major Groove Face Minor Groove Face Watson-Crick Base-pairing Face Pyrimid- ines Cytidine:

Uridine:

Purines Adenosine:

Guanosine:

In some embodiments, B is an alternative uracil. Exemplary alternative uracils include those having Formula (b1)-(b5):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

is a single or double bond;

each of T^(1′), T^(1″), T^(2′), and T^(2″) is, independently, H, optionally substituted alkyl, optionally substituted alkoxy, or optionally substituted thioalkoxy, or the combination of T^(1′) and T^(1″) or the combination of T^(2′) and T^(2″) join together (e.g., as in T²) to form O (oxo), S (thio), or Se (seleno);

each of V¹ and V² is, independently, O, S, N(R^(Vb))_(nv), or C(R^(Vb))_(nv), wherein nv is an integer from 0 to 2 and each R^(Vb) is, independently, H, halo, optionally substituted amino acid, optionally substituted alkyl, optionally substituted haloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl), optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted acylaminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl), optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, or optionally substituted alkoxycarbonylalkoxy (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl);

R¹⁰ is H, halo, optionally substituted amino acid, hydroxyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aminoalkyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted alkoxy, optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkoxy, optionally substituted carboxyalkyl, or optionally substituted carbamoylalkyl;

R¹¹ is H or optionally substituted alkyl;

R^(12a) is H, optionally substituted alkyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl, optionally substituted carboxyalkyl (e.g., optionally substituted with hydroxyl), optionally substituted carboxyalkoxy, optionally substituted carboxyaminoalkyl, or optionally substituted carbamoylalkyl; and

R^(12c) is H, halo, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted thioalkoxy, optionally substituted amino, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl, or R^(12c) combines with R¹⁰ to form an optionally substituted C₂-C₉ heterocyclyl.

Other exemplary alternative uracils include those having Formula (b6)-(b9):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

is a single or double bond;

each of T^(1′), T^(1″), T^(2′), and T^(2″) is, independently, H, optionally substituted alkyl, optionally substituted alkoxy, or optionally substituted thioalkoxy, or the combination of T^(1′) and T^(1″) join together (acid. as in T¹) or the combination of T^(2′) and T^(2″) join together (e.g., as in T²) to form O (oxo), S (thio), or Se (seleno), or each T¹ and T² is, independently, O (oxo), S (thio), or Se (seleno);

each of W¹ and W² is, independently, N(R^(Wa))_(nw), or C(R^(Wa))_(nw), wherein nw is an integer from 0 to 2 and each R^(Wa) is, independently, H, optionally substituted alkyl, or optionally substituted alkoxy;

each V³ is, independently, O, S, N(R^(Va))_(nv), or C(R^(Va))_(nv), wherein nv is an integer from 0 to 2 and each R^(Va) is, independently, H, halo, optionally substituted amino acid, optionally substituted alkyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, optionally substituted alkoxy, optionally substituted alkenyloxy, or optionally substituted alkynyloxy, optionally substituted aminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl), optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted acylaminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl), optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylacyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkyl (e.g., optionally substituted with hydroxyl and/or an O-protecting group), optionally substituted carboxyalkoxy, optionally substituted carboxyaminoalkyl, or optionally substituted carbamoylalkyl (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl), and wherein R^(Va) and R^(12c) taken together with the carbon atoms to which they are attached can form optionally substituted cycloalkyl, optionally substituted aryl, or optionally substituted heterocyclyl (e.g., a 5- or 6-membered ring);

R^(12a) is H, optionally substituted alkyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted carboxyalkyl (e.g., optionally substituted with hydroxyl and/or an O-protecting group), optionally substituted carboxyalkoxy, optionally substituted carboxyaminoalkyl, optionally substituted carbamoylalkyl, or absent;

R^(12b) is H, optionally substituted hydroxyl, optionally substituted amino, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted alkaryl, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, optionally substituted amino acid, optionally substituted alkoxycarbonylacyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkyl (e.g., optionally substituted with hydroxyl and/or an O-protecting group), optionally substituted carboxyalkoxy, optionally substituted carboxyaminoalkyl, or optionally substituted carbamoylalkyl,

wherein the combination of R^(12b) and T^(1′), the combination of R^(12a) and R^(12c), the combination of R^(12a) and T^(2′), or the combination of R^(12b) and R^(12c) can join together to form optionally substituted heterocyclyl (e.g., C₂₋₉); and

R^(12c) is H, halo, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted thioalkoxy, optionally substituted amino, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl.

Further exemplary alternative uracils include those having Formula (b28)-(b31):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each of T¹ and T² is, independently, O (oxo), S (thio), or Se (seleno);

each R^(Vb′) and R^(Vb″) is, independently, H, halo, cyano, optionally substituted amino acid, optionally substituted alkyl, optionally substituted haloalkyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxyalkyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl), optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted acylaminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl), optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylacyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkyl (e.g., optionally substituted with hydroxyl and/or an O-protecting group), optionally substituted carboxyalkoxy, optionally substituted carboxyaminoalkyl, or optionally substituted carbamoylalkyl (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl) (e.g., R^(Vb′) is optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted aminoalkyl, e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl);

R^(12a) is H, optionally substituted alkyl, optionally substituted carboxyaminoalkyl, optionally substituted aminoalkyl (e.g., e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl), optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and

R^(12b) is H, optionally substituted hydroxyl, optionally substituted amino, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl (e.g., e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl), optionally substituted alkoxycarbonylacyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkoxy, optionally substituted carboxyalkyl, or optionally substituted carbamoylalkyl.

In particular embodiments, T¹ is O (oxo), and T² is S (thio) or Se (seleno). In other embodiments, T¹ is S (thio), and T² is O (oxo) or Se (seleno). In some embodiments, R^(Vb′) is H, optionally substituted alkyl, or optionally substituted alkoxy.

In other embodiments, each R^(12a) and R^(12b) is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted hydroxyalkyl. In particular embodiments, R^(12a) is H. In other embodiments, both R^(12a) and R^(12b) are H.

In some embodiments, each R^(Vb′) of R^(12b) is, independently, optionally substituted aminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl, or sulfoalkyl), optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, or optionally substituted acylaminoalkyl (e.g., substituted with an N-protecting group, such as any described herein, e.g., trifluoroacetyl). In some embodiments, the amino and/or alkyl of the optionally substituted aminoalkyl is substituted with one or more of optionally substituted alkyl, optionally substituted alkenyl, optionally substituted sulfoalkyl, optionally substituted carboxy (e.g., substituted with an O-protecting group), optionally substituted hydroxyl (e.g., substituted with an O-protecting group), optionally substituted carboxyalkyl (e.g., substituted with an O-protecting group), optionally substituted alkoxycarbonylalkyl (e.g., substituted with an O-protecting group), or N-protecting group. In some embodiments, optionally substituted aminoalkyl is substituted with an optionally substituted sulfoalkyl or optionally substituted alkenyl. In particular embodiments, R^(12a) and R^(Vb″) are both H. In particular embodiments, T¹ is O (oxo), and T² is S (thio) or Se (seleno).

In some embodiments, R^(Vb′) is optionally substituted alkoxycarbonylalkyl or optionally substituted carbamoylalkyl.

In particular embodiments, the optional substituent for R^(12a), R^(12b), R^(12c), or R^(Va) is a polyethylene glycol group (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl); or an amino-polyethylene glycol group (e.g., —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl).

In some embodiments, B is an alternative cytosine. Exemplary alternative cytosines include compounds of Formula (b10)-(b14):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each of T^(3′) and T^(3″) is, independently, H, optionally substituted alkyl, optionally substituted alkoxy, or optionally substituted thioalkoxy, or the combination of T^(3′) and T^(3″) join together (e.g., as in T³) to form O (oxo), S (thio), or Se (seleno);

each V⁴ is, independently, O, S, N(R^(Vc))_(nv), or C(R^(Vc))_(nv), wherein nv is an integer from 0 to 2 and each R^(Vc) is, independently, H, halo, optionally substituted amino acid, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, or optionally substituted alkynyloxy (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl), wherein the combination of R^(13b) and R^(Vc) can be taken together to form optionally substituted heterocyclyl;

each V⁵ is, independently, N(R^(Vd))_(nv), or C(R^(Vd))_(nv), wherein nv is an integer from 0 to 2 and each R^(Vd) is, independently, H, halo, optionally substituted amino acid, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, or optionally substituted alkynyloxy (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl) (e.g., V⁵ is —CH or N);

each of R^(13a) and R^(13b) is, independently, H, optionally substituted acyl, optionally substituted acyloxyalkyl, optionally substituted alkyl, or optionally substituted alkoxy, wherein the combination of R^(13b) and R¹⁴ can be taken together to form optionally substituted heterocyclyl;

each R¹⁴ is, independently, H, halo, hydroxyl, thiol, optionally substituted acyl, optionally substituted amino acid, optionally substituted alkyl, optionally substituted haloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl (e.g., substituted with an O-protecting group), optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted acyloxyalkyl, optionally substituted amino (e.g., —NHR, wherein R is H, alkyl, aryl, or phosphoryl), azido, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and

each of R¹⁵ and R¹⁶ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted alkynyl.

Further exemplary alternative cytosines include those having Formula (b32)-(b35):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each of T¹ and T³ is, independently, O (oxo), S (thio), or Se (seleno);

each of R^(13a) and R^(13b) is, independently, H, optionally substituted acyl, optionally substituted acyloxyalkyl, optionally substituted alkyl, or optionally substituted alkoxy, wherein the combination of R^(13b) and R¹⁴ can be taken together to form optionally substituted heterocyclyl;

each R¹⁴ is, independently, H, halo, hydroxyl, thiol, optionally substituted acyl, optionally substituted amino acid, optionally substituted alkyl, optionally substituted haloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl (e.g., substituted with an O-protecting group), optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted acyloxyalkyl, optionally substituted amino (e.g., —NHR, wherein R is H, alkyl, aryl, or phosphoryl), azido, optionally substituted aryl, optionally substituted cycloalkyl, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, optionally substituted aminoalkyl (e.g., hydroxyalkyl, alkyl, alkenyl, or alkynyl), optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and

each of R¹⁵ and R¹⁶ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted alkynyl (e.g., R¹⁵ is H, and R¹⁶ is H or optionally substituted alkyl).

In some embodiments, R¹⁵ is H, and R¹⁶ is H or optionally substituted alkyl. In particular embodiments, R¹⁴ is H, acyl, or hydroxyalkyl. In some embodiments, R¹⁴ is halo. In some embodiments, both R¹⁴ and R¹⁵ are H. In some embodiments, both R¹⁵ and R¹⁶ are H. In some embodiments, each of R¹⁴ and R¹⁵ and R¹⁶ is H. In further embodiments, each of R^(13a) and R^(13b) is independently, H or optionally substituted alkyl.

Further non-limiting examples of alternative cytosines include compounds of Formula (b36):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each R^(13b) is, independently, H, optionally substituted acyl, optionally substituted acyloxyalkyl, optionally substituted alkyl, or optionally substituted alkoxy, wherein the combination of R^(13b) and R^(14b) can be taken together to form optionally substituted heterocyclyl;

each R^(14a) and R^(14b) is, independently, H, halo, hydroxyl, thiol, optionally substituted acyl, optionally substituted amino acid, optionally substituted alkyl, optionally substituted haloalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl (e.g., substituted with an O-protecting group), optionally substituted hydroxyalkenyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy, optionally substituted aminoalkoxy, optionally substituted alkoxyalkoxy, optionally substituted acyloxyalkyl, optionally substituted amino (e.g., —NHR, wherein R is H, alkyl, aryl, phosphoryl, optionally substituted aminoalkyl, or optionally substituted carboxyaminoalkyl), azido, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted alkheterocyclyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, or optionally substituted aminoalkynyl; and

each of R¹⁵ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted alkynyl.

In particular embodiments, R^(14b) is an optionally substituted amino acid (e.g., optionally substituted lysine). In some embodiments, R^(14a) is H.

In some embodiments, B is an alternative guanine. Exemplary alternative guanines include compounds of Formula (b15)-(b17):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

Each of T^(4′), T^(4″), T^(5′), T^(5″), T^(6′), and T^(6″) is, independently, H, optionally substituted alkyl, or optionally substituted alkoxy, and wherein the combination of T^(4′) and T^(4″) (e.g., as in T⁴) or the combination of T^(5′) and T^(5″) (e.g., as in T⁵) or the combination of T^(6′) and T^(6″) join together (e.g., as in T⁶) form O (oxo), S (thio), or Se (seleno);

each of V⁵ and V⁶ is, independently, O, S, N(R^(Vd))_(nv), or C(R^(Vd))_(nv), wherein nv is an integer from 0 to 2 and each R^(Vd) is, independently, H, halo, thiol, nitro, optionally substituted alkoxyalkyl, optionally substituted amino acid, cyano, amidine, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, optionally substituted alkynyloxy (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl), optionally substituted thioalkoxy, or optionally substituted amino; and

each of R¹⁷, R¹⁸, R^(19a), R^(19b), R²¹, R²², R²³, and R²⁴ is, independently, H, halo, nitro, thiol, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted thioalkoxy, optionally substituted amino, or optionally substituted amino acid.

Exemplary alternative guanosines include compounds of Formula (b37)-(b40):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each of T^(4′) is, independently, H, optionally substituted alkyl, or optionally substituted alkoxy, and each T⁴ is, independently, O (oxo), S (thio), or Se (seleno);

each of R¹⁸, R^(19a), R^(19b), and R²¹ is, independently, H, halo, thiol, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted thioalkoxy, optionally substituted amino, or optionally substituted amino acid.

In some embodiments, R¹⁸ is H or optionally substituted alkyl. In further embodiments, T⁴ is oxo. In some embodiments, each of R^(19a) and R^(19b) is, independently, H or optionally substituted alkyl.

In some embodiments, B is an alternative adenine. Exemplary alternative adenines include compounds of Formula (b18)-(b20):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each V⁷ is, independently, O, S, N(R^(Ve))_(nv), or C(R^(Ve))_(nv), wherein nv is an integer from 0 to 2 and each R^(Ve) is, independently, H, halo, optionally substituted amino acid, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted alkenyloxy, or optionally substituted alkynyloxy (e.g., optionally substituted with any substituent described herein, such as those selected from (1)-(21) for alkyl);

each R²⁵ is, independently, H, halo, thiol, nitro, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted thioalkoxy, or optionally substituted amino;

each of R^(26a) and R^(26b) is, independently, H, optionally substituted acyl, optionally substituted amino acid, optionally substituted carbamoylalkyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkoxy, or polyethylene glycol group (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl); or an amino-polyethylene glycol group (e.g., —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl);

each R²⁷ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted thioalkoxy, or optionally substituted amino;

each R²⁸ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, or optionally substituted alkynyl; and

each R²⁹ is, independently, H, optionally substituted acyl, optionally substituted amino acid, optionally substituted carbamoylalkyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted alkoxy, or optionally substituted amino.

Exemplary alternative adenines include compounds of Formula (b41)-(b43):

or a pharmaceutically acceptable salt or stereoisomer thereof, wherein

each R²⁵ is, independently, H, halo, thiol, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted thioalkoxy, or optionally substituted amino;

each of R^(26a) and R^(26b) is, independently, H, optionally substituted acyl, optionally substituted amino acid, optionally substituted carbamoylalkyl, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted hydroxyalkyl, optionally substituted hydroxyalkenyl, optionally substituted hydroxyalkynyl, optionally substituted alkoxy, or polyethylene glycol group (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1) (CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl); or an amino-polyethylene glycol group (e.g., —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl); and

each R²⁷ is, independently, H, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted alkoxy, optionally substituted thioalkoxy, or optionally substituted amino.

In some embodiments, R^(26a) is H, and R^(26b) is optionally substituted alkyl. In some embodiments, each of R^(26a) and R^(26b) is, independently, optionally substituted alkyl. In particular embodiments, R²⁷ is optionally substituted alkyl, optionally substituted alkoxy, or optionally substituted thioalkoxy. In other embodiments, R²⁵ is optionally substituted alkyl, optionally substituted alkoxy, or optionally substituted thioalkoxy.

In particular embodiments, the optional substituent for R^(26a), R^(26b), or R²⁹ is a polyethylene glycol group (e.g., —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl); or an amino-polyethylene glycol group (e.g., —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl).

In some embodiments, B may have Formula (b21):

wherein X¹² is, independently, O, S, optionally substituted alkylene (e.g., methylene), or optionally substituted heteroalkylene, xa is an integer from 0 to 3, and R^(12a) and T² are as described herein.

In some embodiments, B may have Formula (b22):

wherein R^(10′) is, independently, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted alkoxy, optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkoxy, optionally substituted carboxyalkyl, or optionally substituted carbamoylalkyl, and R¹¹, R^(12a), T¹, and T² are as described herein.

In some embodiments, B may have Formula (b23):

wherein R¹⁰ is optionally substituted heterocyclyl (e.g., optionally substituted furyl, optionally substituted thienyl, or optionally substituted pyrrolyl), optionally substituted aryl (e.g., optionally substituted phenyl or optionally substituted naphthyl), or any substituent described herein (e.g., for R¹⁰); and wherein R¹¹ (e.g., H or any substituent described herein), R^(12a) (e.g., H or any substituent described herein), T¹ (e.g., oxo or any substituent described herein), and T² (e.g., oxo or any substituent described herein) are as described herein.

In some embodiments, B may have Formula (b24):

wherein R¹⁴ is, independently, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heterocyclyl, optionally substituted alkaryl, optionally substituted alkheterocyclyl, optionally substituted aminoalkyl, optionally substituted aminoalkenyl, optionally substituted aminoalkynyl, optionally substituted alkoxy, optionally substituted alkoxycarbonylalkyl, optionally substituted alkoxycarbonylalkenyl, optionally substituted alkoxycarbonylalkynyl, optionally substituted alkoxycarbonylalkoxy, optionally substituted carboxyalkoxy, optionally substituted carboxyalkyl, or optionally substituted carbamoylalkyl, and R^(13a), R¹⁵, and T³ are as described herein.

In some embodiments, B may have Formula (b25):

wherein R^(14′)is optionally substituted heterocyclyl (e.g., optionally substituted furyl, optionally substituted thienyl, or optionally substituted pyrrolyl), optionally substituted aryl (e.g., optionally substituted phenyl or optionally substituted naphthyl), or any substituent described herein (e.g., for R¹⁴ or R^(14′)); and wherein R^(13a) (e.g., H or any substituent described herein), R^(13b) (e.g., H or any substituent described herein), R¹⁵ (e.g., H or any substituent described herein), and T³ (e.g., oxo or any substituent described herein) are as described herein.

In some embodiments, B is a nucleobase selected from the group consisting of cytosine, guanine, adenine, and uracil. In some embodiments, B may be:

In some embodiments, B may have the structure of Formula (b44):

wherein each of R³⁰, R³¹, R³², R³³, and R³⁴ is independently hydrogen, fluorine, or optionally substituted alkyl.

In some embodiments, B may have the structure of Formula (b45):

wherein R³⁵ is hydrogen or optionally substituted alkyl.

In some embodiments, B may have the structure of Formula (b46):

wherein X^(a) is N or CR⁴¹; R³⁶ is hydrogen, halo, nitro, or optionally substituted alkyl; R³⁷, R³⁸, R³⁹, and R⁴⁰ are independently hydrogen or halo (e.g., fluorine); and R⁴¹ is hydrogen or optionally substituted alkyl.

In some embodiments, B may have the structure of Formula (b47):

wherein X is N or CH; R⁴² is hydrogen, halo, nitro, or optionally substituted alkyl, and R⁴³ and R⁴⁴ are independently hydrogen or optionally substituted alkyl.

In some embodiments, the alternative nucleobase is an alternative uracil. Exemplary nucleobases and nucleosides having an alternative uracil include pseudouridine (ψ), pyridin-4-one ribonucleoside, 5-aza-uridine, 6-aza-uridine, 2-thio-5-aza-uridine, 2-thio-uridine (s²U), 4-thio-uridine (s⁴U), 4-thio-pseudouridine, 2-thio-pseudouridine, 5-hydroxy-uridine (ho⁵U), 5-aminoallyl-uridine, 5-halo-uridine (e.g., 5-iodo-uridineor 5-bromo-uridine), 3-methyl-uridine (m³U), 5-methoxy-uridine (mo⁵U), uridine 5-oxyacetic acid (cmo⁵U), uridine 5-oxyacetic acid methyl ester (mcmo⁵U), 5-carboxymethyl-uridine (cm⁵U), 1-carboxymethyl-pseudouridine, 5-carboxyhydroxymethyl-uridine (chm⁵U), 5-carboxyhydroxymethyl-uridine methyl ester (mchm⁵U), 5-methoxycarbonylmethyl-uridine (mcm⁵U), 5-methoxycarbonylmethyl-2-thio-uridine (mcm⁵s²U), 5-aminomethyl-2-thio-uridine (nm⁵s²U), 5-methylaminomethyl-uridine (mnm⁵U), 5-methylaminomethyl-2-thio-uridine (mnm⁵s²U), 5-methylaminomethyl-2-seleno-uridine (mnm⁵se²U), 5-carbamoylmethyl-uridine (ncm⁵U), 5-carboxymethylaminomethyl-uridine (cmnm⁵U), 5-carboxymethylaminomethyl-2-thio-uridine (cmnm⁵s²U), 5-propynyl-uridine, 1-propynyl-pseudouridine, 5-taurinomethyl-uridine (τm⁵U), 1-taurinomethyl-pseudouridine, 5-taurinomethyl-2-thio-uridine(τm⁵s²U), 1-taurinomethyl-4-thio-pseudouridine, 5-methyl-uridine (m⁵U, i.e., having the nucleobase deoxythymine), 1-methyl-pseudouridine (m¹ψ), 5-methyl-2-thio-uridine (m⁵s²U), 1-methyl-4-thio-pseudouridine (m¹s⁴ψ), 4-thio-1-methyl-pseudouridine, 3-methyl-pseudouridine (m³ψ), 2-thio-1-methyl-pseudouridine, 1-methyl-1-deaza-pseudouridine, 2-thio-1-methyl-1-deaza-pseudouridine, dihydrouridine (D), dihydropseudouridine, 5,6-dihydrouridine, 5-methyl-dihydrouridine (m⁵D), 2-thio-dihydrouridine, 2-thio-dihydropseudouridine, 2-methoxy-uridine, 2-methoxy-4-thio-uridine, 4-methoxy-pseudouridine, 4-methoxy-2-thio-pseudouridine, N1-methyl-pseudouridine, 3-(3-amino-3-carboxypropyl)uridine (acp³U), 1-methyl-3-(3-amino-3-carboxypropyl)pseudouridine (acp³ ψ), 5-(isopentenylaminomethyl)uridine (inm⁵U), 5-(isopentenylaminomethyl)-2-thio-uridine (inm⁵s²U), α-thio-uridine, 2′-O-methyl-uridine (Urn), 5,2′-O-dimethyl-uridine (m⁵Um), 2′-O-methyl-pseudouridine (ψm), 2-thio-2′-O-methyl-uridine (s²Um), 5-methoxycarbonylmethyl-2′-O-methyl-uridine (mcm⁵Um), 5-carbamoylmethyl-2′-O-methyl-uridine (ncm⁵Um), 5-carboxymethylaminomethyl-2′-O-methyl-uridine (cmnm⁵Um), 3,2′-O-dimethyl-uridine (m³Um), and 5-(isopentenylaminomethyl)-2′-O-methyl-uridine (inm⁵Um), 1-thio-uridine, deoxythymidine, 2′-F-ara-uridine, 2′-F-uridine, 2′-OH-ara-uridine, 5-(2-carbomethoxyvinyl) uridine, and 5-[3-(1-E-propenylamino)uridine.

In some embodiments, the alternative nucleobase is an alternative cytosine. Exemplary nucleobases and nucleosides having an alternative cytosine include 5-aza-cytidine, 6-aza-cytidine, pseudoisocytidine, 3-methyl-cytidine (m³C), N4-acetyl-cytidine (ac⁴C), 5-formyl-cytidine (f⁵C), N4-methyl-cytidine (m⁴C), 5-methyl-cytidine (m⁵C), 5-halo-cytidine (e.g., 5-iodo-cytidine), 5-hydroxymethyl-cytidine (hm⁵C), 1-methyl-pseudoisocytidine, pyrrolo-cytidine, pyrrolo-pseudoisocytidine, 2-thio-cytidine (s²C), 2-thio-5-methyl-cytidine, 4-thio-pseudoisocytidine, 4-thio-1-methyl-pseudoisocytidine, 4-thio-1-methyl-1-deaza-pseudoisocytidine, 1-methyl-1-deaza-pseudoisocytidine, zebularine, 5-aza-zebularine, 5-methyl-zebularine, 5-aza-2-thio-zebularine, 2-thio-zebularine, 2-methoxy-cytidine, 2-methoxy-5-methyl-cytidine, 4-methoxy-pseudoisocytidine, 4-methoxy-1-methyl-pseudoisocytidine, lysidine (k₂C), α-thio-cytidine, 2′-O-methyl-cytidine (Cm), 5,2′-O-dimethyl-cytidine (m⁵Cm), N4-acetyl-2′-O-methyl-cytidine (ac⁴Cm), N4,2′-O-dimethyl-cytidine (m⁴Cm), 5-formyl-2′-O-methyl-cytidine (f⁵Cm), N4,N4,2′-O-trimethyl-cytidine (m⁴ ₂Cm), 1-thio-cytidine, 2′-F-ara-cytidine, 2′-F-cytidine, and 2′-OH-ara-cytidine.

In some embodiments, the alternative nucleobase is an alternative adenine. Exemplary nucleobases and nucleosides having an alternative adenine include 2-amino-purine, 2, 6-diaminopurine, 2-amino-6-halo-purine (e.g., 2-amino-6-chloro-purine), 6-halo-purine (e.g., 6-chloro-purine), 2-amino-6-methyl-purine, 8-azido-adenosine, 7-deaza-adenine, 7-deaza-8-aza-adenine, 7-deaza-2-amino-purine, 7-deaza-8-aza-2-amino-purine, 7-deaza-2,6-diaminopurine, 7-deaza-8-aza-2,6-diaminopurine, 1-methyl-adenosine (m¹A), 2-methyl-adenine (m²A), N6-methyl-adenosine (m⁶A), 2-methylthio-N6-methyl-adenosine (ms² m⁶A), N6-isopentenyl-adenosine (i⁶A), 2-methylthio-N6-isopentenyl-adenosine (ms²i⁶A), N6-(cis-hydroxyisopentenyl)adenosine (io⁶A), 2-methylthio-N6-(cis-hydroxyisopentenyl)adenosine (ms²io⁶A), N6-glycinylcarbamoyl-adenosine (g⁶A), N6-threonylcarbamoyl-adenosine (t⁶A), N6-methyl-N6-threonylcarbamoyl-adenosine (m⁶t⁶A), 2-methylthio-N6-threonylcarbamoyl-adenosine (ms²g⁶A), N6,N6-dimethyl-adenosine (m⁶ ₂A), N6-hydroxynorvalylcarbamoyl-adenosine (hn⁶A), 2-methylthio-N6-hydroxynorvalylcarbamoyl-adenosine (ms²hn⁶A), N6-acetyl-adenosine (ac⁶A), 7-methyl-adenine, 2-methylthio-adenine, 2-methoxy-adenine, α-thio-adenosine, 2′-O-methyl-adenosine (Am), N6,2′-O-dimethyl-adenosine (m⁶Am), N6,N6,2′-O-trimethyl-adenosine (m⁶ ₂Am), 1,2′-O-dimethyl-adenosine (m¹Am), 2′-O-ribosyladenosine (phosphate) (Ar(p)), 2-amino-N6-methyl-purine, 1-thio-adenosine, 8-azido-adenosine, 2′-F-ara-adenosine, 2′-F-adenosine, 2′-OH-ara-adenosine, and N6-(19-amino-pentaoxanonadecyl)-adenosine.

In some embodiments, the alternative nucleobase is an alternative guanine. Exemplary nucleobases and nucleosides having an alternative guanine include inosine (I), 1-methyl-inosine (m¹I), wyosine (imG), methylwyosine (mimG), 4-demethyl-wyosine (imG-14), isowyosine (imG2), wybutosine (yW), peroxywybutosine (o₂yW), hydroxywybutosine (OhyW), undermodified hydroxywybutosine (OhyW*), 7-deaza-guanosine, queuosine (Q), epoxyqueuosine (oQ), galactosyl-queuosine (galQ), mannosyl-queuosine (manQ), 7-cyano-7-deaza-guanosine (preQ₀), 7-aminomethyl-7-deaza-guanosine (preQ₁), archaeosine (G⁺), 7-deaza-8-aza-guanosine, 6-thio-guanosine, 6-thio-7-deaza-guanosine, 6-thio-7-deaza-8-aza-guanosine, 7-methyl-guanosine (m⁷G), 6-thio-7-methyl-guanosine, 7-methyl-inosine, 6-methoxy-guanosine, 1-methyl-guanosine (m¹G), N2-methyl-guanosine (m²G), N2,N2-dimethyl-guanosine (m² ₂G), N2,7-dimethyl-guanosine (m^(2,7)G), N2, N2,7-dimethyl-guanosine 8-oxo-guanosine, 7-methyl-8-oxo-guanosine, 1-methyl-6-thio-guanosine, N2-methyl-6-thio-guanosine, N2,N2-dimethyl-6-thio-guanosine, α-thio-guanosine, 2′-O-methyl-guanosine (Gm), N2-methyl-2′-O-methyl-guanosine (m²Gm), N2,N2-dimethyl-2′-O-methyl-guanosine (m² ₂Gm), 1-methyl-2′-O-methyl-guanosine (m¹Gm), N2,7-dimethyl-2′-O-methyl-guanosine (m²⁷Gm), 2′-O-methyl-inosine (Im), 1,2′-O-dimethyl-inosine (m¹Im), 2′-O-ribosylguanosine (phosphate) (Gr(p)), 1-thio-guanosine, 06-methyl-guanosine, 2′-F-ara-guanosine, and 2′-F-guanosine.

In some embodiments, the nucleotide can be altered. For example, such alterations include replacing hydrogen on C-5 of uracil or cytosine with alkyl (e.g., methyl) or halo.

The nucleobase of a nucleotide can be independently selected from a purine, a pyrimidine, a purine or pyrimidine analog. For example, the nucleobase can each be independently selected from adenine, cytosine, guanine, uracil, or hypoxanthine. In another embodiment, the nucleobase can also include, for example, naturally-occurring and synthetic derivatives of a base, including pyrazolo[3,4-d]pyrimidines, 5-methylcytosine (5-me-C), 5-hydroxymethyl cytosine, xanthine, hypoxanthine, 2-aminoadenine, 6-methyl and other alkyl derivatives of adenine and guanine, 2-propyl and other alkyl derivatives of adenine and guanine, 2-thiouracil, 2-thiothymine and 2-thiocytosine, 5-propynyl uracil and cytosine, 6-azo uracil, cytosine and thymine, 5-uracil (pseudouracil), 4-thiouracil, 8-halo (e.g., 8-bromo), 8-amino, 8-thiol, 8-thioalkyl, 8-hydroxyl and other 8-substituted adenines and guanines, 5-halo particularly 5-bromo, 5-trifluoromethyl and other 5-substituted uracils and cytosines, 7-methylguanine and 7-methyladenine, 8-azaguanine and 8-azaadenine, deazaguanine, 7-deazaguanine, 3-deazaguanine, deazaadenine, 7-deazaadenine, 3-deazaadenine, pyrazolo[3,4-d]pyrimidine, imidazo[1,5-a]1,3,5 triazinones, 9-deazapurines, imidazo[4,5-d]pyrazines, thiazolo[4,5-d]pyrimidines, pyrazin-2-ones, 1,2,4-triazine, pyridazine; and 1,3,5 triazine. When the nucleotides are depicted using the shorthand A, G, C, T or U, each letter refers to the representative base and/or derivatives thereof, e.g., A includes adenine or adenine analogs, e.g., 7-deaza adenine).

In some embodiments, the alternative nucleotide is a compound of Formula XI:

wherein:

denotes a single or a double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

Z is H, C₁₋₁₂ alkyl, or C₆₋₂₀ aryl, or Z is absent when

denotes a double bond; and

Z can be —CR^(a)R^(b)— and form a bond with A;

A is H, OH, NHR wherein R=alkyl or aryl or phosphoryl, sulfate, —NH₂, N₃, azido, —SH, N an amino acid, or a peptide comprising 1 to 12 amino acids;

D is H, OH, NHR wherein R=alkyl or aryl or phosphoryl, —NH₂, —SH, an amino acid, a peptide comprising 1 to 12 amino acids, or a group of Formula XII:

or A and D together with the carbon atoms to which they are attached form a 5-membered ring;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a1)R^(b1), and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

n is 0, 1, 2, or 3;

m is 0, 1, 2 or 3;

B is nucleobase;

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion; and

—OR^(c1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH;

provided that the ring encompassing the variables A, B, D, U, Z, Y² and Y³ cannot be ribose.

In some embodiments, B is a nucleobase selected from the group consisting of cytosine, guanine, adenine, and uracil.

In some embodiments, the nucleobase is a pyrimidine or derivative thereof.

In some embodiments, the alternative nucleotides are a compound of Formula XI-a:

In some embodiments, the alternative nucleotides are a compound of Formula XI-b:

In some embodiments, the alternative nucleotides are a compound of Formula XI-c1, XI-c2, or XI-c3:

In some embodiments, the alternative nucleotides are a compound of Formula XI:

wherein:

denotes a single or a double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

Z is H, C₁₋₁₂ alkyl, or C₆₋₂₀ aryl, or Z is absent when

denotes a double bond; and

Z can be —CR^(a)R^(b)— and form a bond with A;

A is H, OH, sulfate, —NH₂, —SH, an amino acid, or a peptide comprising 1 to 12 amino acids;

D is H, OH, —NH₂, —SH, an amino acid, a peptide comprising 1 to 12 amino acids, or a group of Formula XII:

or A and D together with the carbon atoms to which they are attached form a 5-membered ring;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a1)R^(b1), and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

n is 0, 1, 2, or 3;

m is 0, 1, 2 or 3;

B is a nucleobase of Formula XIII:

wherein:

V is N or positively charged NR^(c);

R³ is NR^(c)R^(d), —OR^(a), or —SR^(a);

R⁴ is H or can optionally form a bond with Y³;

R⁵ is H, —NR^(c)R^(d), or —OR^(a);

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion; and

—OR^(c1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH.

In some embodiments, B is:

wherein R³ is —OH, —SH, or

In some embodiments, B is:

In some embodiments, B is:

In some embodiments, the alternative nucleotides are a compound of Formula I-d:

In some embodiments, the alternative nucleotides are a compound selected from the group consisting of:

or a pharmaceutically acceptable salt thereof.

In some embodiments, the alternative nucleotides are a compound selected from the group consisting of:

or a pharmaceutically acceptable salt thereof.

Alterations on the Internucleoside Linkage

The alternative nucleotides, which may be incorporated into a polynucleotide molecule, can be altered on the internucleoside linkage (e.g., phosphate backbone). Herein, in the context of the polynucleotide backbone, the phrases “phosphate” and “phosphodiester” are used interchangeably. Backbone phosphate groups can be altered by replacing one or more of the oxygen atoms with a different substituent.

The alternative nucleosides and nucleotides can include the wholesale replacement of an unaltered phosphate moiety with another internucleoside linkage as described herein. Examples of alternative phosphate groups include, but are not limited to, phosphorothioate, phosphoroselenates, boranophosphates, boranophosphate esters, hydrogen phosphonates, phosphoramidates, phosphorodiamidates, alkyl or aryl phosphonates, and phosphotriesters. Phosphorodithioates have both non-linking oxygens replaced by sulfur. The phosphate linker can also be altered by the replacement of a linking oxygen with nitrogen (bridged phosphoramidates), sulfur (bridged phosphorothioates), and carbon (bridged methylene-phosphonates).

The alternative nucleosides and nucleotides can include the replacement of one or more of the non-bridging oxygens with a borane moiety (BH₃), sulfur (thio), methyl, ethyl and/or methoxy. As a non-limiting example, two non-bridging oxygens at the same position (e.g., the alpha (α), beta (β) or gamma (γ) position) can be replaced with a sulfur (thio) and a methoxy.

The replacement of one or more of the oxygen atoms at the α position of the phosphate moiety (e.g., α-thio phosphate) is provided to confer stability (such as against exonucleases and endonucleases) to RNA and DNA through the unnatural phosphorothioate backbone linkages. Phosphorothioate DNA and RNA have increased nuclease resistance and subsequently a longer half-life in a cellular environment. While not wishing to be bound by theory, phosphorothioate linked polynucleotide molecules are expected to also reduce the innate immune response through weaker binding/activation of cellular innate immune molecules.

In specific embodiments, an alternative nucleoside includes an alpha-thio-nucleoside (e.g., 5′-O-(1-thiophosphate)-adenosine, 5′-O-(1-thiophosphate)-cytidine (α-thio-cytidine), 5′-O-(1-thiophosphate)-guanosine, 5′-O-(1-thiophosphate)-uridine, or 5′-O-(1-thiophosphate)-pseudouridine).

Other internucleoside linkages that may be employed according to the present invention, including internucleoside linkages which do not contain a phosphorous atom, are described herein.

Combinations of Alternative Sugars, Nucleobases, and Internucleoside Linkages

The polynucleotides of the invention can include a combination of alterations to the sugar, the nucleobase, and/or the internucleoside linkage. These combinations can include any one or more alterations described herein. For examples, any of the nucleotides described herein in Formulas (Ia), (Ia-1)-(Ia-3), (Ib)-(If), (Iia)-(Iip), (Iib-1), (Iib-2), (Iic-1)-(Iic-2), (Iin-1), (Iin-2), (Iva)-(Ivl), and (Ixa)-(Ixr) can be combined with any of the nucleobases described herein (e.g., in Formulas (b1)-(b43) or any other described herein).

Synthesis of Polynucleotide Molecules

The polynucleotide molecules for use in accordance with the invention may be prepared according to any useful technique, as described herein. The alternative nucleosides and nucleotides used in the synthesis of polynucleotide molecules disclosed herein can be prepared from readily available starting materials using the following general methods and procedures. Where typical or preferred process conditions (e.g., reaction temperatures, times, mole ratios of reactants, solvents, and/or pressures) are provided, a skilled artisan would be able to optimize and develop additional process conditions. Optimum reaction conditions may vary with the particular reactants or solvent used, but such conditions can be determined by one skilled in the art by routine optimization procedures.

The processes described herein can be monitored according to any suitable method known in the art. For example, product formation can be monitored by spectroscopic means, such as nuclear magnetic resonance spectroscopy (e.g., ¹H or ¹³C) infrared spectroscopy, spectrophotometry (e.g., UV-visible), or mass spectrometry, or by chromatography such as high performance liquid chromatography (HPLC) or thin layer chromatography.

Preparation of polynucleotide molecules of the present invention can involve the protection and deprotection of various chemical groups. The need for protection and deprotection, and the selection of appropriate protecting groups can be readily determined by one skilled in the art. The chemistry of protecting groups can be found, for example, in Greene, et al., Protective Groups in Organic Synthesis, 2d. Ed., Wiley & Sons, 1991, which is incorporated herein by reference in its entirety.

The reactions of the processes described herein can be carried out in suitable solvents, which can be readily selected by one of skill in the art of organic synthesis. Suitable solvents can be substantially nonreactive with the starting materials (reactants), the intermediates, or products at the temperatures at which the reactions are carried out, i.e., temperatures which can range from the solvent's freezing temperature to the solvent's boiling temperature. A given reaction can be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction step, suitable solvents for a particular reaction step can be selected.

Resolution of racemic mixtures of alternative polynucleotides or nucleic acids (e.g., polynucleotides or alternative mRNA molecules) can be carried out by any of numerous methods known in the art. An example method includes fractional recrystallization using a “chiral resolving acid” which is an optically active, salt-forming organic acid. Suitable resolving agents for fractional recrystallization methods are, for example, optically active acids, such as the D and L forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid or the various optically active camphorsulfonic acids. Resolution of racemic mixtures can also be carried out by elution on a column packed with an optically active resolving agent (e.g., dinitrobenzoylphenylglycine). Suitable elution solvent composition can be determined by one skilled in the art.

Alternative nucleosides and nucleotides (e.g., building block molecules) can be prepared according to the synthetic methods described in Ogata et al., J. Org. Chem. 74:2585-2588 (2009); Purmal et al., Nucl. Acids Res. 22(1): 72-78, (1994); Fukuhara et al., Biochemistry, 1(4): 563-568 (1962); and Xu et al., Tetrahedron, 48(9): 1729-1740 (1992), each of which are incorporated by reference in their entirety.

The polynucleotides of the invention may or may not be uniformly altered along the entire length of the molecule. For example, one or more or all types of nucleotide (e.g., purine or pyrimidine, or any one or more or all of A, G, U, C) may or may not be uniformly altered in a polynucleotide of the invention, or in a given predetermined sequence region thereof. In some embodiments, all nucleotides X in a polynucleotide of the invention (or in a given sequence region thereof) are altered, wherein X may any one of nucleotides A, G, U, C, or any one of the combinations A+G, A+U, A+C, G+U, G+C, U+C, A+G+U, A+G+C, G+U+C or A+G+C.

Different sugar alterations, nucleotide alterations, and/or internucleoside linkages (e.g., backbone structures) may exist at various positions in the polynucleotide. One of ordinary skill in the art will appreciate that the nucleotide analogs or other alteration(s) may be located at any position(s) of a polynucleotide such that the function of the polynucleotide is not substantially decreased. A alteration may also be a 5′ or 3′ terminal alteration. The polynucleotide may contain from about 1% to about 100% alternative nucleotides (either in relation to overall nucleotide content, or in relation to one or more types of nucleotide, i.e. any one or more of A, G, U or C) or any intervening percentage (e.g., from 1% to 20%, from 1% to 25%, from 1% to 50%, from 1% to 60%, from 1% to 70%, from 1% to 80%, from 1% to 90%, from 1% to 95%, from 10% to 20%, from 10% to 25%, from 10% to 50%, from 10% to 60%, from 10% to 70%, from 10% to 80%, from 10% to 90%, from 10% to 95%, from 10% to 100%, from 20% to 25%, from 20% to 50%, from 20% to 60%, from 20% to 70%, from 20% to 80%, from 20% to 90%, from 20% to 95%, from 20% to 100%, from 50% to 60%, from 50% to 70%, from 50% to 80%, from 50% to 90%, from 50% to 95%, from 50% to 100%, from 70% to 80%, from 70% to 90%, from 70% to 95%, from 70% to 100%, from 80% to 90%, from 80% to 95%, from 80% to 100%, from 90% to 95%, from 90% to 100%, and from 95% to 100. In some embodiments, the remaining percentage is accounted for by the presence of A, G, U, or C.

In some embodiments, the polynucleotide includes an alternative pyrimidine (e.g., an alternative uracil/uridine/U or alternative cytosine/cytidine/C). In some embodiments, the uracil or uridine (generally: U) in the polynucleotide molecule may be replaced with from about 1% to about 100% of an alternative uracil or alternative uridine (e.g., from 1% to 20%, from 1% to 25%, from 1% to 50%, from 1% to 60%, from 1% to 70%, from 1% to 80%, from 1% to 90%, from 1% to 95%, from 10% to 20%, from 10% to 25%, from 10% to 50%, from 10% to 60%, from 10% to 70%, from 10% to 80%, from 10% to 90%, from 10% to 95%, from 10% to 100%, from 20% to 25%, from 20% to 50%, from 20% to 60%, from 20% to 70%, from 20% to 80%, from 20% to 90%, from 20% to 95%, from 20% to 100%, from 50% to 60%, from 50% to 70%, from 50% to 80%, from 50% to 90%, from 50% to 95%, from 50% to 100%, from 70% to 80%, from 70% to 90%, from 70% to 95%, from 70% to 100%, from 80% to 90%, from 80% to 95%, from 80% to 100%, from 90% to 95%, from 90% to 100%, and from 95% to 100% of an alternative uracil or alternative uridine). The alternative uracil or uridine can be replaced by a compound having a single unique structure or by a plurality of compounds having different structures (e.g., 2, 3, 4 or more unique structures, as described herein). In some embodiments, the cytosine or cytidine (generally: C) in the polynucleotide molecule may be replaced with from about 1% to about 100% of an alternative cytosine or alternative cytidine (e.g., from 1% to 20%, from 1% to 25%, from 1% to 50%, from 1% to 60%, from 1% to 70%, from 1% to 80%, from 1% to 90%, from 1% to 95%, from 10% to 20%, from 10% to 25%, from 10% to 50%, from 10% to 60%, from 10% to 70%, from 10% to 80%, from 10% to 90%, from 10% to 95%, from 10% to 100%, from 20% to 25%, from 20% to 50%, from 20% to 60%, from 20% to 70%, from 20% to 80%, from 20% to 90%, from 20% to 95%, from 20% to 100%, from 50% to 60%, from 50% to 70%, from 50% to 80%, from 50% to 90%, from 50% to 95%, from 50% to 100%, from 70% to 80%, from 70% to 90%, from 70% to 95%, from 70% to 100%, from 80% to 90%, from 80% to 95%, from 80% to 100%, from 90% to 95%, from 90% to 100%, and from 95% to 100% of an alternative cytosine or alternative cytidine). The alternative cytosine or cytidine can be replaced by a compound having a single unique structure or by a plurality of compounds having different structures (e.g., 2, 3, 4 or more unique structures, as described herein).

When referring to percentage incorporation by an alternative nucleoside (e.g., an alternative nucleoside containing an alternative uracil or cytosine or an alternative uridine or cytidine) in some embodiments the remaining percentage necessary to total 100% is accounted for by the corresponding natural nucleoside (e.g., uridine or cytidine) or natural nucleobase (e.g., uracil or cytosine). In other embodiments, the remaining percentage necessary to total 100% is accounted for by a second alternative nucleoside (e.g., an alternative nucleoside containing an alternative uracil or cytosine or an alternative uridine or cytidine). In some embodiments, the first alternative nucleoside is 5-methoxy-uridine or a nucleoside containing 5-methoxy-uracil and the second alternative nucleoside is 1-methyl-pseudouridine or a nucleoside containing 1-methyl-psuedouracil.

In some embodiments, the polynucleotide of the invention contains about 5% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A1. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A1 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 5 100 5 95 5 90 5 85 5 80 5 75 5 70 5 65 5 60 5 55 5 50 5 45 5 40 5 35 5 30 5 25 5 20 5 15 5 10 5 5

In some embodiments, the polynucleotide of the invention contains about 10% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A2. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A2 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 10 100 10 95 10 90 10 85 10 80 10 75 10 70 10 65 10 60 10 55 10 50 10 45 10 40 10 35 10 30 10 25 10 20 10 15 10 10 10 5

In some embodiments, the polynucleotide of the invention contains about 15% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A3. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A3 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 15 100 15 95 15 90 15 85 15 80 15 75 15 70 15 65 15 60 15 55 15 50 15 45 15 40 15 35 15 30 15 25 15 20 15 15 15 10 15 5

In some embodiments, the polynucleotide of the invention contains about 20% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A4. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A4 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 20 100 20 95 20 90 20 85 20 80 20 75 20 70 20 65 20 60 20 55 20 50 20 45 20 40 20 35 20 30 20 25 20 20 20 15 20 10 20 5

In some embodiments, the polynucleotide of the invention contains about 25% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A5. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A5 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 25 100 25 95 25 90 25 85 25 80 25 75 25 70 25 65 25 60 25 55 25 50 25 45 25 40 25 35 25 30 25 25 25 20 25 15 25 10 25 5

In some embodiments, the polynucleotide of the invention contains about 30% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A6. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A6 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 30 100 30 95 30 90 30 85 30 80 30 75 30 70 30 65 30 60 30 55 30 50 30 45 30 40 30 35 30 30 30 25 30 20 30 15 30 10 30 5

In some embodiments, the polynucleotide of the invention contains about 35% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A7. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A7 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 35 100 35 95 35 90 35 85 35 80 35 75 35 70 35 65 35 60 35 55 35 50 35 45 35 40 35 35 35 30 35 25 35 20 35 15 35 10 35 5

In some embodiments, the polynucleotide of the invention contains about 40% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A8. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A8 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 40 100 40 95 40 90 40 85 40 80 40 75 40 70 40 65 40 60 40 55 40 50 40 45 40 40 40 35 40 30 40 25 40 20 40 15 40 10 40 5

In some embodiments, the polynucleotide of the invention contains about 45% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A9. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A9 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 45 100 45 95 45 90 45 85 45 80 45 75 45 70 45 65 45 60 45 55 45 50 45 45 45 40 45 35 45 30 45 25 45 20 45 15 45 10 45 5

In some embodiments, the polynucleotide of the invention contains about 50% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A10. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A10 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 50 100 50 95 50 90 50 85 50 80 50 75 50 70 50 65 50 60 50 55 50 50 50 45 50 40 50 35 50 30 50 25 50 20 50 15 50 10 50 5

In some embodiments, the polynucleotide of the invention contains about 55% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A11. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A11 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 55 100 55 95 55 90 55 85 55 80 55 75 55 70 55 65 55 60 55 55 55 50 55 45 55 40 55 35 55 30 55 25 55 20 55 15 55 10 55 5

In some embodiments, the polynucleotide of the invention contains about 60% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A12. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A12 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 60 100 60 95 60 90 60 85 60 80 60 75 60 70 60 65 60 60 60 55 60 50 60 45 60 40 60 35 60 30 60 25 60 20 60 15 60 10 60 5

In some embodiments, the polynucleotide of the invention contains about 65% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A13. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A13 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 65 100 65 95 65 90 65 85 65 80 65 75 65 70 65 65 65 60 65 55 65 50 65 45 65 40 65 35 65 30 65 25 65 20 65 15 65 10 65 5

In some embodiments, the polynucleotide of the invention contains about 70% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A14. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A14 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 70 100 70 95 70 90 70 85 70 80 70 75 70 70 70 65 70 60 70 55 70 50 70 45 70 40 70 35 70 30 70 25 70 20 70 15 70 10 70 5

In some embodiments, the polynucleotide of the invention contains about 75% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A15. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A15 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 75 100 75 95 75 90 75 85 75 80 75 75 75 70 75 65 75 60 75 55 75 50 75 45 75 40 75 35 75 30 75 25 75 20 75 15 75 10 75 5

In some embodiments, the polynucleotide of the invention contains about 80% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A16. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A16 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 80 100 80 95 80 90 80 85 80 80 80 75 80 70 80 65 80 60 80 55 80 50 80 45 80 40 80 35 80 30 80 25 80 20 80 15 80 10 80 5

In some embodiments, the polynucleotide of the invention contains about 85% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A17. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A17 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 85 100 85 95 85 90 85 85 85 80 85 75 85 70 85 65 85 60 85 55 85 50 85 45 85 40 85 35 85 30 85 25 85 20 85 15 85 10 85 5

In some embodiments, the polynucleotide of the invention contains about 90% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A18. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A18 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 90 100 90 95 90 90 90 85 90 80 90 75 90 70 90 65 90 60 90 55 90 50 90 45 90 40 90 35 90 30 90 25 90 20 90 15 90 10 90 5

In some embodiments, the polynucleotide of the invention contains about 95% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A19. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A19 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 95 100 95 95 95 90 95 85 95 80 95 75 95 70 95 65 95 60 95 55 95 50 95 45 95 40 95 35 95 30 95 25 95 20 95 15 95 10 95 5

In some embodiments, the polynucleotide of the invention contains about 100% alternative uracil, e.g., alternative uracils described in Table 2, in combination with a percentage of alternative cytosine, e.g., alternative cytosines described in Table 3, according to columns 1 and 2 of Table A20. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A20 Column 1 Column 2 Percentage of Percentage of alternative uracil alternative cytosine 100 100 100 95 100 90 100 85 100 80 100 75 100 70 100 65 100 60 100 55 100 50 100 45 100 40 100 35 100 30 100 25 100 20 100 15 100 10 100 5

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 1 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 1 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 1 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 2 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 2 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 2 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 3 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 3 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 3 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 4 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 4 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 4 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 5 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 5 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 5 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 6 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 6 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 6 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 7 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 7 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 7 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 8 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 8 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 8 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 9 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 9 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 9 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 10 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 10 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 10 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 11 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 11 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 11 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 12 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 12 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 12 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 13 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 13 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 13 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 14 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 14 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 14 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 15 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 15 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 15 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 16 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 16 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 16 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 17 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 17 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 17 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 18 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 18 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 18 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 19 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 19 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 19 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 20 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 20 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 20 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 21 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 21 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 21 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 22 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 22 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 22 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 23 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 23 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 23 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 24 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 24 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 24 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 25 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 25 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 25 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 26 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 26 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 26 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 27 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 27 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 27 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 28 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 28 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 28 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 29 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 29 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 29 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 30 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 30 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 30 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 31 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 31 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 31 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 32 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 32 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 32 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 33 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 33 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 33 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 34 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 34 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 34 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 35 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 35 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 35 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 36 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 36 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 36 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 37 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 37 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 37 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 38 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 38 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 38 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 39 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 39 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 39 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 40 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 40 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 40 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 41 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 41 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 41 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 42 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 42 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 42 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 43 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 43 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 43 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 44 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 44 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 44 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 45 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 45 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 45 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 46 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 46 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 46 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 47 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 47 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 47 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 48 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 48 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 48 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 49 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 49 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 49 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 50 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 50 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 50 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 51 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 51 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 51 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 52 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 52 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 52 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 53 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 53 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 53 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 54 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 54 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 54 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 55 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 55 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 55 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 56 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 56 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 56 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 57 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 57 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 57 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 58 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 58 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 58 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 59 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 59 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 59 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 60 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 60 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 60 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 61 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 61 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 61 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 62 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 62 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 62 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 63 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 63 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 63 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 64 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 64 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 64 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 65 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 65 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 65 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 66 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 66 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 66 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 67 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 67 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 67 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 68 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 68 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 68 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 69 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 69 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 69 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 70 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 70 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 70 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 71 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 71 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 71 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 72 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 72 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 72 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 73 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 73 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 73 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 74 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 74 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 74 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 75 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 75 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 75 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 76 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 76 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 76 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 77 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 77 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 77 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 78 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 78 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 78 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 79 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 79 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 79 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 80 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 80 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 80 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 81 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 81 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 81 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 82 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 82 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 82 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 83 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 83 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 83 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 84 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 84 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 84 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 85 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 85 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 85 of Table A21 and the percentage A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 86 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 86 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 86 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 87 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 1 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 87 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 2 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uracil, e.g., alternative uracils described in Table 2, in row 87 of Table A21 and the percentage range of alternative cytosine, e.g., alternative cytosines as described in Table 3, in column 3 of Table A21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A21 Column 1 Column 2 Column 3 Percentage Percentage Percentage Percentage range of range of range of range of alternative alternative alternative alternative Row uracil cytosine cytosine cytosine 1 5 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 2 5 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 3 5 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 4 5 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 5 5 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 6 5 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 7 10 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 8 10 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 9 10 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 10 10 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 11 10 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 12 10 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 13 15 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 14 15 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 15 15 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 16 15 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 17 15 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 18 15 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 19 20 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 20 20 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 21 20 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 22 20 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 23 20 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 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to 70 75 to 95 25 to 50 50 to 75 75 to 100 26 25 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 27 25 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 28 25 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 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to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 33 30 to 65 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 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to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 38 35 to 60 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 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to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 42 40 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 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70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 74 65 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 75 65 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 76 65 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 77 70 to 75 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 78 70 to 80 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 79 70 to 85 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 80 70 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 81 70 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 82 70 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 83 75 to 80 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 84 75 to 85 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 85 75 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 86 75 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 87 75 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 1 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 2 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 3 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 4 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 5 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 6 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 7 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 8 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uracil, e.g., alternative uracils described in Table 2, in row 9 of Table A22 and the percentages of alternative cytosine, e.g., alternative cytosines described in Table 3, in column 1 of Table A22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In further embodiments, the polynucleotide does not include an alternative adenine or guanine.

TABLE A22 Column 1 Percentage range of Percentage range of Row alternative uracil alternative cytosine 1 10 50 55 60 65 70 75 80 85 90 95 100 2 15 50 55 60 65 70 75 80 85 90 95 100 3 20 50 55 60 65 70 75 80 85 90 95 100 4 25 50 55 60 65 70 75 80 85 90 95 100 5 30 50 55 60 65 70 75 80 85 90 95 100 6 35 50 55 60 65 70 75 80 85 90 95 100 7 40 50 55 60 65 70 75 80 85 90 95 100 8 45 50 55 60 65 70 75 80 85 90 95 100 9 50 50 55 60 65 70 75 80 85 90 95 100

In some embodiments, the polynucleotide of the invention contains about 5% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B1. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B1 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 5 100 5 95 5 90 5 85 5 80 5 75 5 70 5 65 5 60 5 55 5 50 5 45 5 40 5 35 5 30 5 25 5 20 5 15 5 10 5 5

In some embodiments, the polynucleotide of the invention contains about 10% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B2. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B2 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 10 100 10 95 10 90 10 85 10 80 10 75 10 70 10 65 10 60 10 55 10 50 10 45 10 40 10 35 10 30 10 25 10 20 10 15 10 10 10 5

In some embodiments, the polynucleotide of the invention contains about 15% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B3. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B3 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 15 100 15 95 15 90 15 85 15 80 15 75 15 70 15 65 15 60 15 55 15 50 15 45 15 40 15 35 15 30 15 25 15 20 15 15 15 10 15 5

In some embodiments, the polynucleotide of the invention contains about 20% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B4. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B4 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 20 100 20 95 20 90 20 85 20 80 20 75 20 70 20 65 20 60 20 55 20 50 20 45 20 40 20 35 20 30 20 25 20 20 20 15 20 10 20 5

In some embodiments, the polynucleotide of the invention contains about 25% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B5. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B5 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 25 100 25 95 25 90 25 85 25 80 25 75 25 70 25 65 25 60 25 55 25 50 25 45 25 40 25 35 25 30 25 25 25 20 25 15 25 10 25 5

In some embodiments, the polynucleotide of the invention contains about 30% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B6. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B6 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 30 100 30 95 30 90 30 85 30 80 30 75 30 70 30 65 30 60 30 55 30 50 30 45 30 40 30 35 30 30 30 25 30 20 30 15 30 10 30 5

In some embodiments, the polynucleotide of the invention contains about 35% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B7. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B7 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 35 100 35 95 35 90 35 85 35 80 35 75 35 70 35 65 35 60 35 55 35 50 35 45 35 40 35 35 35 30 35 25 35 20 35 15 35 10 35 5

In some embodiments, the polynucleotide of the invention contains about 40% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B8. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B8 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 40 100 40 95 40 90 40 85 40 80 40 75 40 70 40 65 40 60 40 55 40 50 40 45 40 40 40 35 40 30 40 25 40 20 40 15 40 10 40 5

In some embodiments, the polynucleotide of the invention contains about 45% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B9. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B9 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 45 100 45 95 45 90 45 85 45 80 45 75 45 70 45 65 45 60 45 55 45 50 45 45 45 40 45 35 45 30 45 25 45 20 45 15 45 10 45 5

In some embodiments, the polynucleotide of the invention contains about 50% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B10. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B10 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 50 100 50 95 50 90 50 85 50 80 50 75 50 70 50 65 50 60 50 55 50 50 50 45 50 40 50 35 50 30 50 25 50 20 50 15 50 10 50 5

In some embodiments, the polynucleotide of the invention contains about 55% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B11. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B11 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 55 100 55 95 55 90 55 85 55 80 55 75 55 70 55 65 55 60 55 55 55 50 55 45 55 40 55 35 55 30 55 25 55 20 55 15 55 10 55 5

In some embodiments, the polynucleotide of the invention contains about 60% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B12. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B12 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 60 100 60 95 60 90 60 85 60 80 60 75 60 70 60 65 60 60 60 55 60 50 60 45 60 40 60 35 60 30 60 25 60 20 60 15 60 10 60 5

In some embodiments, the polynucleotide of the invention contains about 65% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B13. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B13 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 65 100 65 95 65 90 65 85 65 80 65 75 65 70 65 65 65 60 65 55 65 50 65 45 65 40 65 35 65 30 65 25 65 20 65 15 65 10 65 5

In some embodiments, the polynucleotide of the invention contains about 70% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B14. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B14 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 70 100 70 95 70 90 70 85 70 80 70 75 70 70 70 65 70 60 70 55 70 50 70 45 70 40 70 35 70 30 70 25 70 20 70 15 70 10 70 5

In some embodiments, the polynucleotide of the invention contains about 75% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B15. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B15 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 75 100 75 95 75 90 75 85 75 80 75 75 75 70 75 65 75 60 75 55 75 50 75 45 75 40 75 35 75 30 75 25 75 20 75 15 75 10 75 5

In some embodiments, the polynucleotide of the invention contains about 80% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B16. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B16 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 80 100 80 95 80 90 80 85 80 80 80 75 80 70 80 65 80 60 80 55 80 50 80 45 80 40 80 35 80 30 80 25 80 20 80 15 80 10 80 5

In some embodiments, the polynucleotide of the invention contains about 85% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B17. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B17 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 85 100 85 95 85 90 85 85 85 80 85 75 85 70 85 65 85 60 85 55 85 50 85 45 85 40 85 35 85 30 85 25 85 20 85 15 85 10 85 5

In some embodiments, the polynucleotide of the invention contains about 90% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B18. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B18 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 90 100 90 95 90 90 90 85 90 80 90 75 90 70 90 65 90 60 90 55 90 50 90 45 90 40 90 35 90 30 90 25 90 20 90 15 90 10 90 5

In some embodiments, the polynucleotide of the invention contains about 95% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B19. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B19 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 95 100 95 95 95 90 95 85 95 80 95 75 95 70 95 65 95 60 95 55 95 50 95 45 95 40 95 35 95 30 95 25 95 20 95 15 95 10 95 5

In some embodiments, the polynucleotide of the invention contains about 100% alternative uridine, e.g., alternative uridines as described in Table 2, in combination with a percentage of alternative cytidine, e.g., alternative cytidines described in Table 3, according to columns 1 and 2 of Table B20. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B20 Column 1 Column 2 Percentage of Percentage of alternative uridine alternative cytidine 100 100 100 95 100 90 100 85 100 80 100 75 100 70 100 65 100 60 100 55 100 50 100 45 100 40 100 35 100 30 100 25 100 20 100 15 100 10 100 5

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 1 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 1 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 1 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 2 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 2 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 2 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 3 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 3 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 3 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 4 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 4 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 4 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 5 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 5 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 5 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 6 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 6 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 6 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 7 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 7 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 7 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 8 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 8 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 8 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 9 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 9 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 9 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 10 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 10 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 10 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 11 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 11 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 11 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 12 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 12 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 12 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 13 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 13 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 13 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 14 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 14 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 14 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 15 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 15 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 15 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 16 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 16 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 16 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 17 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 17 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 17 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 18 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 18 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 18 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 19 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 19 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 19 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 20 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 20 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 20 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 21 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 21 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 21 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 22 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 22 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 22 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 23 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 23 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 23 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 24 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 24 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 24 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 25 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 25 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 25 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 26 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 26 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 26 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 27 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 27 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 27 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 28 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 28 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 28 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 29 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 29 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 29 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 30 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 30 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 30 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 31 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 31 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 31 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 32 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 32 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 32 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 33 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 33 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 33 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 34 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 34 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 34 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 35 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 35 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 35 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 36 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 36 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 36 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 37 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 37 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 37 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 38 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 38 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 38 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 39 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 39 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 39 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 40 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 40 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 40 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 41 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 41 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 41 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 42 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 42 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 42 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 43 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 43 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 43 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 44 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 44 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 44 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 45 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 45 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 45 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 46 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 46 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 46 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 47 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 47 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 47 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 48 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 48 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 48 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 49 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 49 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 49 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 50 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 50 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 50 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 51 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 51 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 51 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 52 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 52 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 52 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 53 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 53 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 53 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 54 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 54 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 54 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 55 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 55 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 55 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 56 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 56 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 56 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 57 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 57 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 57 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 58 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 58 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 58 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 59 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 59 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 59 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 60 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 60 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 60 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 61 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 61 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 61 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 62 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 62 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 62 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 63 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 63 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 63 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 64 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 64 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 64 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 65 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 65 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 65 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 66 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 66 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 66 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 67 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 67 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 67 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 68 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 68 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 68 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 69 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 69 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 69 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 70 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 70 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 70 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 71 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 71 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 71 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 72 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 72 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 72 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 73 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 73 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 73 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 74 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 74 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 74 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 75 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 75 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 75 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 76 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 76 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 76 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 77 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 77 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 77 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 78 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 78 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 78 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 79 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 79 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 79 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 80 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 80 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 80 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 81 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 81 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 81 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 82 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 82 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 82 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 83 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 83 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 83 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 84 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 84 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 84 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 85 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 85 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 85 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 86 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 86 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 2 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 86 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 87 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 87 of Table B21 and the Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

In some embodiments, the polynucleotide of the invention contains the percentage range of alternative uridine, e.g., alternative uridines as described in Table 2, in row 87 of Table B21 and the percentage range of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 3 of Table B21. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B21 Column 1 Column 2 Column 3 Percentage Percentage Percentage Percentage range of range of range of range of alternative alternative alternative alternative Row uridine cytidine cytidine cytidine 1 5 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 2 5 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 3 5 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 4 5 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 5 5 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 6 5 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 7 10 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 8 10 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 9 10 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 10 10 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 11 10 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 12 10 to 50 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 13 15 to 25 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 14 15 to 30 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 15 15 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 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to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 21 20 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 22 20 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 23 20 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 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to 70 75 to 95 25 to 50 50 to 75 75 to 100 26 25 to 35 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 27 25 to 40 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 28 25 to 45 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 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to 75 75 to 100 31 30 to 55 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 32 30 to 60 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 33 30 to 65 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 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to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 38 35 to 60 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 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15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 68 60 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 69 60 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 70 60 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 71 65 to 75 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 72 65 to 80 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 73 65 to 85 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 74 65 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 75 65 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 76 65 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 77 70 to 75 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 78 70 to 80 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 79 70 to 85 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 80 70 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 81 70 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 82 70 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 83 75 to 80 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 84 75 to 85 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 85 75 to 90 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 86 75 to 95 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100 87 75 to 100 5 to 25 30 to 50 55 to 75 5 to 30 30 to 55 55 to 80 5 to 35 30 to 60 55 to 85 5 to 40 30 to 65 55 to 90 5 to 45 30 to 70 55 to 95 5 to 50 30 to 75 55 to 100 10 to 25 35 to 50 60 to 75 10 to 30 35 to 55 60 to 80 10 to 35 35 to 60 60 to 85 10 to 40 35 to 65 60 to 90 10 to 45 35 to 70 60 to 95 10 to 50 35 to 75 60 to 100 15 to 25 40 to 50 65 to 75 15 to 30 40 to 55 65 to 80 15 to 35 40 to 60 65 to 85 15 to 40 40 to 65 65 to 90 15 to 45 40 to 70 65 to 95 15 to 50 40 to 75 65 to 100 20 to 25 45 to 50 70 to 75 20 to 30 45 to 55 70 to 80 20 to 35 45 to 60 70 to 85 20 to 40 45 to 65 70 to 90 20 to 45 45 to 70 70 to 95 20 to 50 45 to 75 70 to 100 25 to 30 50 to 55 75 to 80 25 to 35 50 to 60 75 to 85 25 to 40 50 to 65 75 to 90 25 to 45 50 to 70 75 to 95 25 to 50 50 to 75 75 to 100

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 1 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 2 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 3 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 4 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 5 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 6 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 7 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 8 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

Preferably, in some embodiments, the polynucleotide of the invention contains the percentage of alternative uridine, e.g., alternative uridines as described in Table 2, in row 9 of Table B22 and the percentages of alternative cytidine, e.g., alternative cytidines as described in Table 3, in column 1 of Table B22. In some embodiments, the polynucleotide of the invention contains 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In further embodiments, the polynucleotide does not include an alternative adenosine or guanosine.

TABLE B22 Column 1 Percentage range of Percentage range of Row alternative uridine alternative cytidine 1 10 50 55 60 65 70 75 80 85 90 95 100 2 15 50 55 60 65 70 75 80 85 90 95 100 3 20 50 55 60 65 70 75 80 85 90 95 100 4 25 50 55 60 65 70 75 80 85 90 95 100 5 30 50 55 60 65 70 75 80 85 90 95 100 6 35 50 55 60 65 70 75 80 85 90 95 100 7 40 50 55 60 65 70 75 80 85 90 95 100 8 45 50 55 60 65 70 75 80 85 90 95 100 9 50 50 55 60 65 70 75 80 85 90 95 100

In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-trifluoromethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-hydroxymethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-bromo-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-iodo-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-methoxy-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-ethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-phenyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-ethynyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, N4-methyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-fluoro-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, N4-acetyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, pseudoisocytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-formyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-aminoallyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uracil, uracil, 5-carboxy-cytosine, and cytosine as the only uracils and cytosines.

In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-methyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-trifluoromethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-hydroxymethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-bromo-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-iodo-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-methoxy-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-ethyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-phenyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-ethynyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, N4-methyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-fluoro-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, N4-acetyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, pseudoisocytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-formyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-aminoallyl-cytosine, and cytosine as the only uracils and cytosines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouracil, uracil, 5-carboxy-cytosine, and cytosine as the only uracils and cytosines.

In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-trifluoromethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-hydroxymethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-bromo-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-iodo-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-methoxy-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-ethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-phenyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-ethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, N4-methyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-fluoro-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, N4-acetyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, pseudoisocytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-formyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-aminoallyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 5-methoxy-uridine, uridine, 5-carboxy-cytidine, and cytidine as the only uridines and cytidines.

In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-methyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-trifluoromethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-hydroxymethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-bromo-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-iodo-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-methoxy-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-ethyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-phenyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-ethynyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, N4-methyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-fluoro-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, N4-acetyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, pseudoisocytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-formyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-aminoallyl-cytidine, and cytidine as the only uridines and cytidines. In some embodiments, the polynucleotides of the invention contain 1-methyl-pseudouridine, uridine, 5-carboxy-cytidine, and cytidine as the only uridines and cytidines.

In some embodiments, the polynucleotides of the invention contain the uracil of one of the nucleosides of Table 2 and uracil as the only uracils. In other embodiments, the polynucleotides of the invention contain a uridine of Table 2 and uridine as the only uridines.

TABLE 2 Exemplary uracil containing nucleosides Nucleoside Name 5-methoxy-uridine 1-Methyl-pseudo-uridine pseudouridine 5-methyl-uridine 5-bromo-uridine 2-thio-uridine 4-thiouridine 2′-O-methyluridine 5-methyl-2-thiouridine 5,2′-O-dimethyluridine 5-aminomethyl-2-thiouridine 5-(1-Propynyl)ara-uridine 2′-O-Methyl-5-(1-propynyl)uridine 5-Vinylarauridine (Z)-5-(2-Bromo-vinyl)ara-uridine (E)-5-(2-Bromo-vinyl)ara-uridine (Z)-5-(2-Bromo-vinyl)uridine (E)-5-(2-Bromo-vinyl)uridine 5-Cyanouridine 5-Formyluridine 5-Dimethylaminouridine 5-Trideuteromethyl-6-deuterouridine 5-(2-Furanyl)uridine 5-Phenylethynyluridine 4′-Carbocyclic uridine 4′-Ethynyluridine 4′-Azidouridine 2′-Deoxy-2′,2′-difluorouridine 2′-Deoxy-2′-b-fluorouridine 2′-Deoxy-2′-b-chlorouridine 2′-Deoxy-2′-b-bromouridine 2′-Deoxy-2′-b-iodouridine 5′-Homo-uridine 2′-Deoxy-2′-a-mercaptouridine 2′-Deoxy-2′-a-thiomethoxyuridine 2′-Deoxy-2′-a-azidouridine 2′-Deoxy-2′-a-aminouridine 2′-Deoxy-2′-b-mercaptouridine 2′-Deoxy-2′-b-thiomethoxyuridine 2′-Deoxy-2′-b-azidouridine 2′-Deoxy-2′-b-aminouridine 2′-b-Trifluoromethyluridine 2′-a-Trifluoromethyluridine 2′-b-Ethynyluridine 2′-a-Ethynyluridine 1-ethyl-pseudo-uridine 1-propyl-pseudo-uridine 1-iso-propyl-pseudo-uridine 1-(2,2,2-trifluoroethyl)-pseudo-uridine 1-cyclopropyl-pseudo-uridine 1-cyclopropylmethyl-pseudo-uridine 1-phenyl-pseudo-uridine 1-benzyl-pseudo-uridine 1-aminomethyl-pseudo-uridine pseudo-uridine-1-2-ethanoic acid 1-(3-amino-3-carboxypropyl)pseudo-uridine 1-methyl-3-(3-amino-3-carboxypropyl)pseudo-uridine 6-methyl-pseudo-uridine 6-trifluoromethyl-pseudo-uridine 6-methoxy-pseudo-uridine 6-phenyl-pseudo-uridine 6-iodo-pseudo-uridine 6-bromo-pseudo-uridine 6-chloro-pseudo-uridine 6-fluoro-pseudo-uridine 4-Thio-pseudo-uridine 2-Thio-pseudo-uridine Alpha-thio-pseudo-uridine 1-Me-alpha-thio-pseudo-uridine 1-butyl-pseudo-uridine 1-tert-butyl-pseudo-uridine 1-pentyl-pseudo-uridine 1-hexyl-pseudo-uridine 1-trifluoromethyl-pseudo-uridine 1-cyclobutyl-pseudo-uridine 1-cyclopentyl-pseudo-uridine 1-cyclohexyl-pseudo-uridine 1-cycloheptyl-pseudo-uridine 1-cyclooctyl-pseudo-uridine 1-cyclobutylmethyl-pseudo-uridine 1-cyclopentylmethyl-pseudo-uridine 1-cyclohexylmethyl-pseudo-uridine 1-cycloheptylmethyl-pseudo-uridine 1-cyclooctylmethyl-pseudo-uridine 1-p-tolyl-pseudo-uridine 1-(2,4,6-trimethyl-phenyl)pseudo-uridine 1-(4-methoxy-phenyl)pseudo-uridine 1-(4-amino-phenyl)pseudo-uridine 1(4-nitro-phenyl)pseudo-uridine pseudo-uridine-N1-p-benzoic acid 1-(4-methyl-benzyl)pseudo-uridine 1-(2,4,6-trimethyl-benzyl)pseudo-uridine 1-(4-methoxy-benzyl)pseudo-uridine 1-(4-amino-benzyl)pseudo-uridine 1-(4-nitro-benzyl)pseudo-uridine pseudo-uridine-N1-methyl-p-benzoic acid 1-(2-amino-ethyl)pseudo-uridine 1-(3-amino-propyl)pseudo-uridine 1-(4-amino-butyl)pseudo-uridine 1-(5-amino-pentyl)pseudo-uridine 1-(6-amino-hexyl)pseudo-uridine pseudo-uridine-N1-3-propionic acid pseudo-uridine-N1-4-butanoic acid pseudo-uridine-N1-5-pentanoic acid pseudo-uridine-N1-6-hexanoic acid pseudo-uridine-N1-7-heptanoic acid 1-(2-amino-2-carboxyethyl)pseudo-uridine 1-(4-amino-4-carboxybutyl)pseudo-uridine 3-alkyl-pseudo-uridine 6-ethyl-pseudo-uridine 6-propyl-pseudo-uridine 6-iso-propyl-pseudo-uridine 6-butyl-pseudo-uridine 6-tert-butyl-pseudo-uridine 6-(2,2,2-trifluoroethyl)-pseudo-uridine 6-ethoxy-pseudo-uridine 6-trifluoromethoxy-pseudo-uridine 6-phenyl-pseudo-uridine 6-(substituted-phenyl)-pseudo-uridine 6-cyano-pseudo-uridine 6-azido-pseudo-uridine 6-amino-pseudo-uridine 6-ethylcarboxylate-pseudo-uridine 6-hydroxy-pseudo-uridine 6-methylamino-pseudo-uridine 6-dimethylamino-pseudo-uridine 6-hydroxyamino-pseudo-uridine 6-formyl-pseudo-uridine 6-(4-morpholino)-pseudo-uridine 6-(4-thiomorpholino)-pseudo-uridine 1-me-4-thio-pseudo-uridine 1-me-2-thio-pseudo-uridine 1,6-dimethyl-pseudo-uridine 1-methyl-6-trifluoromethyl-pseudo-uridine 1-methyl-6-ethyl-pseudo-uridine 1-methyl-6-propyl-pseudo-uridine 1-methyl-6-iso-propyl-pseudo-uridine 1-methyl-6-butyl-pseudo-uridine 1-methyl-6-tert-butyl-pseudo-uridine 1-methyl-6-(2,2,2-trifluoroethyl)pseudo-uridine 1-methyl-6-iodo-pseudo-uridine 1-methyl-6-bromo-pseudo-uridine 1-methyl-6-chloro-pseudo-uridine 1-methyl-6-fluoro-pseudo-uridine 1-methyl-6-methoxy-pseudo-uridine 1-methyl-6-ethoxy-pseudo-uridine 1-methyl-6-trifluoromethoxy-pseudo-uridine 1-methyl-6-phenyl-pseudo-uridine 1-methyl-6-(substituted phenyl)pseudo-uridine 1-methyl-6-cyano-pseudo-uridine 1-methyl-6-azido-pseudo-uridine 1-methyl-6-amino-pseudo-uridine 1-methyl-6-ethylcarboxylate-pseudo-uridine 1-methyl-6-hydroxy-pseudo-uridine 1-methyl-6-methylamino-pseudo-uridine 1-methyl-6-dimethylamino-pseudo-uridine 1-methyl-6-hydroxyamino-pseudo-uridine 1-methyl-6-formyl-pseudo-uridine 1-methyl-6-(4-morpholino)-pseudo-uridine 1-methyl-6-(4-thiomorpholino)-pseudo-uridine 1-alkyl-6-vinyl-pseudo-uridine 1-alkyl-6-allyl-pseudo-uridine 1-alkyl-6-homoallyl-pseudo-uridine 1-alkyl-6-ethynyl-pseudo-uridine 1-alkyl-6-(2-propynyl)-pseudo-uridine 1-alkyl-6-(1-propynyl)-pseudo-uridine 1-Hydroxymethylpseudouridine 1-(2-Hydroxyethyl)pseudouridine 1-Methoxymethylpseudouridine 1-(2-Methoxyethyl)pseudouridine 1-(2,2-Diethoxyethyl)pseudouridine (±)1-(2-Hydroxypropyl)pseudouridine (2R)-1-(2-Hydroxypropyl)pseudouridine (2S)-1-(2-Hydroxypropyl)pseudouridine 1-Cyanomethylpseudouridine 1-Morpholinomethylpseudouridine 1-Thiomorpholinomethylpseudouridine 1-Benzyloxymethylpseudouridine 1-(2,2,3,3,3-Pentafluoropropyl)pseudouridine 1-Thiomethoxymethylpseudouridine 1-Methanesulfonylmethylpseudouridine 1-Vinylpseudouridine 1-Allylpseudouridine 1-Homoallylpseudouridine 1-Propargylpseudouridine 1-(4-Fluorobenzyl)pseudouridine 1-(4-Chlorobenzyl)pseudouridine 1-(4-Bromobenzyl)pseudouridine 1-(4-Iodobenzyl)pseudouridine 1-(4-Methylbenzyl)pseudouridine 1-(4-Trifluoromethylbenzyl)pseudouridine 1-(4-Methoxybenzyl)pseudouridine 1-(4-Trifluoromethoxybenzyl)pseudouridine 1-(4-Thiomethoxybenzyl)pseudouridine 1-(4-Methanesulfonylbenzyl)pseudouridine Pseudouridine 1-(4-methylbenzoic acid) Pseudouridine 1-(4-methylbenzenesulfonic acid) 1-(2,4,6-Trimethylbenzyl)pseudouridine 1-(4-Nitrobenzyl)pseudouridine 1-(4-Azidobenzyl)pseudouridine 1-(3,4-Dimethoxybenzyl)pseudouridine 1-(3,4-Bis-trifluoromethoxybenzyl)pseudouridine 1-Acetylpseudouridine 1-Trifluoroacetylpseudouridine 1-Benzoylpseudouridine 1-Pivaloylpseudouridine 1-(3-Cyclopropyl-prop-2-ynyl)pseudouridine Pseudouridine 1-methylphosphonic acid diethyl ester Pseudouridine 1-methylphosphonic acid Pseudouridine 1-[3-(2-ethoxy)]propionic acid Pseudouridine 1-[3-{2-(2-ethoxy)-ethoxy}] propionic acid Pseudouridine TP 1-[3-{2-(2-[2-ethoxy]-ethoxy)-ethoxy}]propionic acid Pseudouridine 1-[3-{2-(2-[2-(2-ethoxy)-ethoxy]-ethoxy)-ethoxy}]propionic acid Pseudouridine 1-[3-{2-(2-[2-{2(2-ethoxy)-ethoxy}-ethoxy]-ethoxy)- ethoxy}]propionic acid 1-{3-[2-(2-Aminoethoxy)-ethoxy]-propionyl} pseudouridine 1-[3-(2-{2-[2-(2-Aminoethoxy)-ethoxy]-ethoxy}-ethoxy)- propionyl]pseudouridine 1-Biotinylpseudouridine 1-Biotinyl-PEG2-pseudouridine 5-Oxyacetic acid-methyl ester-uridine 3-Methyl-pseudo-uridine 5-trifluoromethyl-uridine 5-methyl-amino-methyl-uridine 5-carboxy-methyl-amino-methyl-uridine 5-carboxymethylaminomethyl-2′-OMe-uridine 5-carboxymethylaminomethyl-2-thio-uridine 5-methylaminomethyl-2-thio-uridine 5-methoxy-carbonyl-methyl-uridine 5-methoxy-carbonyl-methyl-2′-OMe-uridine 5-oxyacetic acid-uridine 3-(3-amino-3-carboxypropyl)-uridine 5-(carboxyhydroxymethyl)uridine methyl ester 5-(carboxyhydroxymethyl)uridine 2′-OMe-pseudo-uridine 2′-Azido-2′-deoxy-uridine 2′-Amino-2′-deoxy-uridine 2′-F-5-Methyl-2′-deoxy-uridine 5-iodo-2′-fluoro-deoxyuridine 2′-bromo-deoxyuridine 2,2′-anhydro-uridine 2′-Azido-deoxyuridine 5-Methoxycarbonylmethyl-2-thiouridine 5-Methylaminomethyl-2-thiouridine 5-Carbamoylmethyluridine 5-Carbamoylmethyl-2′-O-methyluridine 1-Methyl-3-(3-amino-3-carboxypropyl) pseudouridine 5-Methylaminomethyl-2-selenouridine 5-Carboxymethyluridine 5-Methyldihydrouridine 5-Taurinomethyluridine 5-Taurinomethyl-2-thiouridine 5-(iso-Pentenylaminomethyl)uridine 5-(iso-Pentenylaminomethyl)-2-thiouridine 5-(iso-Pentenylaminomethyl)-2′-O-methyluridine 2′-O-Methylpseudouridine 2-Thio-2′-O-methyluridine 3,2′-O-Dimethyluridine 5-Methoxy-carbonylmethyl-uridine 5-hydroxy-uridine 5-Isopentenyl-aminomethyl-uridine

In some embodiments, the polynucleotides of the invention contain the cytosine of one of the nucleosides of Table 3 and cytosine as the only cytosines. In other embodiments, the polynucleotides of the invention contain a cytidine of Table 3 and cytidine as the only cytidines.

TABLE 3 Exemplary cytosine containing nucleosides Nucleoside Name α-thio-cytidine pseudoisocytidine pyrrolo-cytidine 5-methyl-cytidine N4-acetyl-cytidine 5-Bromo-cytidine 5-Trifluoromethyl-cytidine 5-Hydroxymethyl-cytidine 5-lodo-cytidine 5-Ethyl-cytidine 5-Methoxy-cytidine 5-Ethynyl-cytidine 5-Fluoro-cytidine 5-Phenyl-cytidine N4-Bz-cytidine N4-Methyl-cytidine 5-Pseudo-iso-cytidine 5-Formyl-cytidine 5-Aminoallyl-cytidine 2-O-methylcytidine 2′-O-Methy1-5-(1-propynyl)cytidine 5-(1-Propynyl)ara-cytidine 5-Ethynylara-cytidine 5-Ethynylcytidine 5-Cyanocytidine 5-(2-Chloro-phenyl)-2-thiocytidine 5-(4-Amino-phenyl)-2-thiocytidine N4,2′-O-Dimethylcytidine 3′-Ethynylcytidine 4′-Carbocyclic cytidine 4′-Ethynylcytidine 4′-Azidocytidine 2-Deoxy-2′,2-difluorocytidine 2′-Deoxy-2′-b-fluorocytidine 2-Deoxy-2-b-chlorocytidine 2′-Deoxy-2′-b-bromocytidine 2′-Deoxy-2′-b-iodocytidine 5′-Homo-cytidine 2′-Deoxy-2′-a-mercaptocytidine 2′-Deoxy-2′-a-thiomethoxycytidine 2′-Deoxy-2′-a-azidocytidine 2-Deoxy-2-a-aminocytidine 2′-Deoxy-2′-b-mercaptocytidine 2′-Deoxy-2′-b-thiomethoxycytidine 2′-Deoxy-2′-b-azidocytidine 2-Deoxy-2-b-aminocytidine 2′-b-Trifluoromethylcytidine 2′-a-Trifluoromethylcytidine 2′-b-Ethynylcytidine 2′-a-Ethynylcytidine (E)-5-(2-Bromo-vinyl)cytidine 2′-Azido-2′-deoxy-cytidine 2′-Amino-2′-deoxy-cytidine 5-aminoallyl-cytidine 2,2′-anhydro-cytidine N4-amino-cytidine 2′-O-Methyl-N4-acetyl-cytidine 2′-fluoro-N4-acetyl-cytidine 2′-fluor-N4-Bz-cytidine 2′-O-methyl-N4-Bz-cytidine N4,2′-O-Dimethylcytidine 5-Formy1-2-O-methylcytidine

In some embodiments, the present disclosure provides methods of synthesizing a polynucleotide (e.g., the first region, first flanking region, or second flanking region) including n number of linked nucleosides having Formula (Ia-1):

comprising:

a) reacting a nucleotide of Formula (IV-1):

with a phosphoramidite compound of Formula (V-1):

wherein Y⁹ is H, hydroxyl, phosphoryl, pyrophosphate, sulfate, amino, thiol, optionally substituted amino acid, or a peptide (e.g., including from 2 to 12 amino acids); and each P¹, P², and P³ is, independently, a suitable protecting group; and

denotes a solid support;

to provide a polynucleotide of Formula (VI-1):

and

b) oxidizing or sulfurizing the polynucleotide of Formula (V) to yield a polynucleotide of Formula (VII-1):

and

c) removing the protecting groups to yield the polynucleotide of Formula (Ia).

In some embodiments, steps a) and b) are repeated from 1 to about 10,000 times. In some embodiments, the methods further comprise a nucleotide selected from the group consisting of adenosine, cytosine, guanosine, and uracil. In some embodiments, the nucleobase may be a pyrimidine or derivative thereof. In some embodiments, the polynucleotide is translatable.

Other components of polynucleotides are optional, and are beneficial in some embodiments. For example, a 5′ untranslated region (UTR) and/or a 3′UTR are provided, wherein either or both may independently contain one or more different nucleotide alterations. In such embodiments, nucleotide alterations may also be present in the translatable region. Also provided are polynucleotides containing a Kozak sequence.

Combinations of Nucleotides

Further examples of alternative nucleotides and alternative nucleotide combinations are provided below in Table 4. These combinations of alternative nucleotides can be used to form the polynucleotides of the invention. Unless otherwise noted, the alternative nucleotides may be completely substituted for the natural nucleotides of the polynucleotides of the invention. As a non-limiting example, the natural nucleotide uridine may be substituted with an alternative nucleoside described herein. In another non-limiting example, the natural nucleotide uridine may be partially substituted (e.g., about 0.1%, 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95% or 99.9%) with at least one of the alternative nucleoside disclosed herein.

TABLE 4 Examples of alternative nucleotides and alternative nucleotide combinations. Alternative Nucleotide Alternative Nucleotide Combination α-thio-cytidine α-thio-cytidine/5-iodo-uridine α-thio-cytidine/N1-methyl-pseudo-uridine α-thio-cytidine/α-thio-uridine α-thio-cytidine/5-methyl-uridine α-thio-cytidine/pseudo-uridine about 50% of the cytosines are α-thio-cytidine pseudoisocytidine pseudoisocytidine/5-iodo-uridine pseudoisocytidine/N1-methyl-pseudouridine pseudoisocytidine/α-thio-uridine pseudoisocytidine/5-methyl-uridine pseudoisocytidine/pseudouridine about 25% of cytosines are pseudoisocytidine pseudoisocytidine/about 50% of uridines are N1-methyl-pseudouridine and about 50% of uridines are pseudouridine pseudoisocytidine/about 25% of uridines are N1-methyl-pseudouridine and about 25% of uridines are pseudouridine (e.g., 25% Ni-methyl-pseudouridine/75% pseudouridine) pyrrolo-cytidine pyrrolo-cytidine/5-iodo-uridine pyrrolo-cytidine/N1-methyl-pseudouridine pyrrolo-cytidine/α-thio-uridine pyrrolo-cytidine/5-methyl-uridine pyrrolo-cytidine/pseudouridine about 50% of the cytosines are pyrrolo-cytidine 5-methyl-cytidine 5-methyl-cytidine/5-iodo-uridine 5-methyl-cytidine/N1-methyl-pseudouridine 5-methyl-cytidine/α-thio-uridine 5-methyl-cytidine/5-methyl-uridine 5-methyl-cytidine/pseudouridine about 25% of cytosines are 5-methyl-cytidine about 50% of cytosines are 5-methyl-cytidine 5-methyl-cytidine/5-methoxy-uridine 5-methyl-cytidine/5-bromo-uridine 5-methyl-cytidine/2-thio-uridine 5-methyl-cytidine/about 50% of uridines are 2-thio-uridine about 50% of uridines are 5-methyl-cytidine/about 50% of uridines are 2-thio-uridine N4-acetyl-cytidine N4-acetyl-cytidine/5-iodo-uridine N4-acetyl-cytidine/N1-methyl-pseudouridine N4-acetyl-cytidine/α-thio-uridine N4-acetyl-cytidine/5-methyl-uridine N4-acetyl-cytidine/pseudouridine about 50% of cytosines are N4-acetyl-cytidine about 25% of cytosines are N4-acetyl-cytidine N4-acetyl-cytidine/5-methoxy-uridine N4-acetyl-cytidine/5-bromo-uridine N4-acetyl-cytidine/2-thio-uridine about 50% of cytosines are N4-acetyl-cytidine/about 50% of uridines are 2-thio-uridine 5-methoxy-uridine 5-methoxy-uridine/cytidine 5-methoxy-uridine/5-methyl-cytidine 5-methoxy-uridine/5-trifluoromethyl-cytidine 5-methoxy-uridine/5-hydroxymethyl-cytidine 5-methoxy-uridine/5-bromo-cytidine 5-methoxy-uridine/α-thio-cytidine 5-methoxy-uridine/N4-acetyl-cytidine 5-methoxy-uridine/pseudoisocytidine about 100% of uridines are 5-methoxy-uridine about 75% of uridines are 5-methoxy-uridine about 50% of uridines are 5-methoxy-uridine about 25% of uridines are 5-methoxy-uridine

TABLE 5 Examples of alternative nucleotides and alternative nucleotide combinations. Uracil Cytosine Adenine Guanine 5-methoxy-UTP CTP ATP GTP 5-Methoxy-UTP N4Ac-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 5-Methoxy-UTP 5-Hydroxymethyl-CTP ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP N4Ac-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 5-Methoxy-UTP 5-Hydroxymethyl-CTP ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP N4-Ac-CTP ATP GTP 5-Methoxy-UTP 5-lodo-CTP ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 75% UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% ATP GTP CTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 25% UTP CTP 50% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 25 % 5-Methyl-CTP + 75% ATP GTP 50% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75 % 5-Methoxy-UTP + CTP ATP GTP 25 % UTP 50% 5-Methoxy-UTP + CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + CTP ATP GTP 75% UTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP CTP Alpha-thio-ATP GTP 5-Methoxy-UTP 5-Methyl-CTP Alpha-thio-ATP GTP 5-Methoxy-UTP CTP ATP Alpha-thio-GTP 5-Methoxy-UTP 5-Methyl-CTP ATP Alpha-thio-GTP 5-Methoxy-UTP CTP N6-Me-ATP GTP 5-Methoxy-UTP 5-Methyl-CTP N6-Me-ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 75% UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% ATP GTP CTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 25% UTP CTP 50% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 50% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Mehoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + CTP CTP GTP 25% UTP 50% 5-Methoxy-UTP + CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + CTP ATP GTP 75% UTP 5-Methoxy-UTP 5-Ethyl-CTP ATP GTP 5-Methoxy-UTP 5-Methoxy-CTP ATP GTP 5-Methoxy-UTP 5-Ethynyl-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 25% 1-Methyl-pseudo- UTP 50% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 50% 1-Methyl-pseudo- UTP 25% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 75% 1-Methyl-pseudo- UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% ATP GTP CTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 75 % 5-Methyl-CTP +25 % ATP GTP 25 % 1-Methyl-pseudo- CTP UTP 75% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 25% 1-Methyl-pseudo- CTP UTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 25% 1-Methyl-pseudo- CTP UTP 50% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 50 % 1-Methyl-pseudo- CTP UTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 50% 1-Methyl-pseudo UTP 50% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 50 % 1-Methyl-pseudo- CTP UTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% 1-Methyl-pseudo- CTP UTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% 1-Methyl-pseudo- CTP UTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% 1-Methyl-pseudo- CTP UTP 75% 5-Methoxy-UTP + CTP ATP GTP 25% 1-Methyl-pseudo- UTP 50% 5-Methoxy-UTP + CTP ATP GTP 50% 1-Methyl-pseudo- UTP 25% 5-Methoxy-UTP + CTP ATP GTP 75% 1-Methyl-pseudo- UTP 5-methoxy-UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 75% UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% ATP GTP CTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 25% UTP CTP 50% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 50% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + CTP ATP GTP 75% UTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + 5-Methyl-CTP ATP GTP 75% UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% ATP GTP CTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 25% UTP CTP 50% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 50% UTP CTP 50% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 50% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + CTP ATP GTP 25% UTP 50% 5-Methoxy-UTP + CTP ATP GTP 50% UTP 25% 5-Methoxy-UTP + CTP ATP GTP 75% UTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% U T P CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 50% 5-Methyl-CTP + 50% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 25% 5-Methyl-CTP + 75% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Fluoro-CTP ATP GTP 5-Methoxy-UTP 5-Phenyl-CTP ATP GTP 5-Methoxy-UTP N4-Bz-CTP ATP GTP 5-Methoxy-UTP CTP N6-lsopentenyl- GTP ATP 5-Methoxy-UTP N4-Ac-CTP ATP GTP 25% 5-Methoxy-UTP + 25% N4-Ac-CTP + 75% CTP ATP GTP 75% UTP 25% 5-Methoxy-UTP + 75% N4-Ac-CTP + 25% CTP ATP GTP 75% UTP 75% 5-Methoxy-UTP + 25% N4-Ac-CTP + 75% CTP ATP GTP 25% UTP 75% 5-Methoxy-UTP + 75% N4-Ac-CTP + 25% CTP ATP GTP 25% UTP 5-Methoxy-UTP 5-Hydroxymethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Hydroxymethyl-CTP + ATP GTP 75% UTP 75% CT P 25% 5-Methoxy-UTP + 75% 5-Hydroxymethyl-CTP + ATP GTP 75% UTP 25% CTP 75% 5-Methoxy-UTP + 25% 5-Hydroxymethyl-CTP + ATP GTP 25% UTP 75% CT P 75% 5-Methoxy-UTP + 75% 5-Hydroxymethyl-CTP + ATP GTP 25% UTP 25% CTP 5-Methoxy-UTP N4-Methyl CTP ATP GTP 25% 5-Methoxy-UTP + 25% N4-Methyl CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% N4-Methyl CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% N4-Methyl CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% N4-Methyl CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Trifluoromethyl-CTP + ATP GTP 75% UTP 75% CTP 25% 5-Methoxy-UTP + 75% 5-Trifluoromethyl-CTP + ATP GTP 75% UTP 25% CTP 75% 5-Methoxy-UTP + 25% 5-Trifluoromethyl-CTP + ATP GTP 25% UTP 75% CTP 75% 5-Methoxy-UTP + 75% 5-Trifluoromethyl-CTP + ATP GTP 25% UTP 25% CTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Bromo-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Bromo-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Bromo-CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Bromo-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-lodo-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-lodo-CTP + 75% CTP ATP GTP 75% UTP 25% 5-Methoxy-UTP + 75% 5-lodo-CTP + 25% CTP ATP GTP 75% UTP 75% 5-Methoxy-UTP + 25% 5-lodo-CTP + 75% CTP ATP GTP 25% UTP 75% 5-Methoxy-UTP + 75% 5-lodo-CTP + 25% CTP ATP GTP 25% UTP 5-Methoxy-UTP 5-Ethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Ethyl-CTP + 75% CTP ATP GTP 75% UTP 25% 5-Methoxy-UTP + 75% 5-Ethyl-CTP + 25% CTP ATP GTP 75% UTP 75% 5-Methoxy-UTP + 25% 5-Ethyl-CTP + 75% CTP ATP GTP 25% UTP 75% 5-Methoxy-UTP + 75% 5-Ethyl-CTP + 25% CTP ATP GTP 25% UTP 5-Methoxy-UTP 5-Methoxy-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Methoxy-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Methoxy-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Methoxy-CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Methoxy-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Ethynyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Ethynyl-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Ethynyl-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Ethynyl-CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Ethynyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Pseudo-iso-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Pseudo-iso-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Pseudo-iso-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Pseudo-iso-CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Pseudo-iso-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Formyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Formyl-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Formyl-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Formyl-CTP + 75% ATP GTP 25% UTP CTP 75% 5-Methoxy-UTP + 75% 5-Formyl-CTP + 25% ATP GTP 25% UTP CTP 5-Methoxy-UTP 5-Aminoallyl-CTP ATP GTP 25% 5-Methoxy-UTP + 25% 5-Aminoallyl-CTP + 75% ATP GTP 75% UTP CTP 25% 5-Methoxy-UTP + 75% 5-Aminoallyl-CTP + 25% ATP GTP 75% UTP CTP 75% 5-Methoxy-UTP + 25% 5-Aminoallyl-CTP + 75% ATP GTP 25%UTP CTP 75% 5-Methoxy-UTP + 75% 5-Aminoallyl-CTP + 25% ATP GTP 25% UTP CTP

Certain alternative nucleotides and nucleotide combinations have been explored by the current inventors. These findings are described in U.S. Provisional Application No. 61/404,413, U.S. patent application Ser. No. 13/251,840, U.S. Patent Publication No US 2013/0102034, International Patent Publication No WO2012045075, U.S. Patent Publication No US20120237975, and International Patent Publication No WO2012045082, each of which is incorporated by reference in its entirety.

Further examples of alternative nucleotide combinations are provided below in Table 6. These combinations of alternative nucleotides can be used to form the polynucleotides of the invention.

TABLE 6 Examples of alternative nucleotide combinations. Alternative Nucleotide Alternative Nucleotide Combination alternative cytidine having one or alternative cytidine with (b10)/pseudouridine more nucleobases of Formula (b10) alternative cytidine with (b10)/N1-methyl-pseudouridine alternative cytidine with (b10)/5-methoxy-uridine alternative cytidine with (b10)/5-methyl-uridine alternative cytidine with (b10)/5-bromo-uridine alternative cytidine with (b10)/2-thio-uridine about 50% of cytidine substituted with alternative cytidine (b10)/about 50% of uridines are 2-thio-uridine alternative cytidine having one or alternative cytidine with (b32)/pseudouridine more nucleobases of Formula (b32) alternative cytidine with (b32)/N1-methyl-pseudouridine alternative cytidine with (b32)/5-methoxy-uridine alternative cytidine with (b32)/5-methyl-uridine alternative cytidine with (b32)/5-bromo-uridine alternative cytidine with (b32)/2-thio-uridine about 50% of cytidine substituted with alternative cytidine (b32)/about 50% of uridines are 2-thio-uridine alternative uridine having one or alternative uridine with (b1)/N4-acetyl-cytidine more nucleobases of Formula (b1) alternative uridine with (131)/5-methyl-cytidine alternative uridine having one or alternative uridine with (b8)/N4-acetyl-cytidine more nucleobases of Formula (b8) alternative uridine with (b8)/5-methyl-cytidine alternative uridine having one or alternative uridine with (b28)/N4-acetyl-cytidine more nucleobases of Formula (b28) alternative uridine with (b28)/5-methyl-cytidine alternative uridine having one or alternative uridine with (b29)/N4-acetyl-cytidine more nucleobases of Formula (b29) alternative uridine with (b29)/5-methyl-cytidine alternative uridine having one or alternative uridine with (b30)/N4-acetyl-cytidine more nucleobases of Formula (b30) alternative uridine with (b30)/5-methyl-cytidine

In some embodiments, at least 25% of the cytosines are replaced by a compound of Formula (b10)-(b14), (b24), (b25), or (b32)-(b35) (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100% of, e.g., a compound of Formula (b10) or (b32)).

In some embodiments, at least 25% of the uracils are replaced by a compound of Formula (b1)-(b9), (b21)-(b23), or (b28)-(b31) (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100% of, e.g., a compound of Formula (b1), (b8), (b28), (b29), or (b30)).

In some embodiments, at least 25% of the cytosines are replaced by a compound of Formula (b10)-(b14), (b24), (b25), or (b32)-(b35) (e.g. Formula (b10) or (b32)), and at least 25% of the uracils are replaced by a compound of Formula (b1)-(b9), (b21)-(b23), or (b28)-(b31) (e.g. Formula (b1), (b8), (b28), (b29), or (b30)) (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100%).

Alterations Including Linker and a Payload

The nucleobase of the nucleotide can be covalently linked at any chemically appropriate position to a payload, e.g., detectable agent or therapeutic agent. For example, the nucleobase can be deaza-adenine or deaza-guanine and the linker can be attached at the C-7 or C-8 positions of the deaza-adenine or deaza-guanine. In other embodiments, the nucleobase can be cytosine or uracil and the linker can be attached to the N-3 or C-5 positions of cytosine or uracil. Scheme 1 below depicts an exemplary alternative nucleotide wherein the nucleobase, adenine, is attached to a linker at the C-7 carbon of 7-deaza adenine. In addition, Scheme 1 depicts the alternative nucleotide with the linker and payload, e.g., a detectable agent, incorporated onto the 3′ end of the mRNA. Disulfide cleavage and 1,2-addition of the thiol group onto the propargyl ester releases the detectable agent. The remaining structure (depicted, for example, as pApC5Parg in Scheme 1) is the inhibitor. The rationale for the structure of the alternative nucleotides is that the tethered inhibitor sterically interferes with the ability of the polymerase to incorporate a second base. Thus, it is critical that the tether be long enough to affect this function and that the inhibiter be in a stereochemical orientation that inhibits or prohibits second and follow on nucleotides into the growing polynucleotide strand.

Linker

The term “linker” as used herein refers to a group of atoms, e.g., 10-1,000 atoms, and can be comprised of the atoms or groups such as, but not limited to, carbon, amino, alkylamino, oxygen, sulfur, sulfoxide, sulfonyl, carbonyl, and imine. The linker can be attached to an alternative nucleoside or nucleotide on the nucleobase or sugar moiety at a first end, and to a payload, e.g., detectable or therapeutic agent, at a second end. The linker is of sufficient length as to not interfere with incorporation into a nucleic acid sequence.

Examples of chemical groups that can be incorporated into the linker include, but are not limited to, an alkyl, alkene, an alkyne, an amido, an ether, a thioether, an or an ester group. The linker chain can also comprise part of a saturated, unsaturated or aromatic ring, including polycyclic and heteroaromatic rings wherein the heteroaromatic ring is an aryl group containing from one to four heteroatoms, N, O or S. Specific examples of linkers include, but are not limited to, unsaturated alkanes, polyethylene glycols, and dextran polymers.

For example, the linker can include ethylene or propylene glycol monomeric units, e.g., diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, tetraethylene glycol, or tetraethylene glycol. In some embodiments, the linker can include a divalent alkyl, alkenyl, and/or alkynyl moiety. The linker can include an ester, amide, or ether moiety.

Other examples include cleavable moieties within the linker, such as, for example, a disulfide bond (—S—S—) or an azo bond (—N═N—), which can be cleaved using a reducing agent or photolysis. A cleavable bond incorporated into the linker and attached to an alternative nucleotide, when cleaved, results in, for example, a short “scar” or chemical alteration on the nucleotide. For example, after cleaving, the resulting scar on a nucleotide base, which formed part of the alternative nucleotide, and is incorporated into a polynucleotide strand, is unreactive and does not need to be chemically neutralized. This increases the ease with which a subsequent nucleotide can be incorporated during sequencing of a nucleic acid polymer template. For example, conditions include the use of tris(2-carboxyethyl)phosphine (TCEP), dithiothreitol (DTT) and/or other reducing agents for cleavage of a disulfide bond. A selectively severable bond that includes an amido bond can be cleaved for example by the use of TCEP or other reducing agents, and/or photolysis. A selectively severable bond that includes an ester bond can be cleaved for example by acidic or basic hydrolysis.

Payload

The methods and compositions described herein are useful for delivering a payload to a biological target. The payload can be used, e.g., for labeling (e.g., a detectable agent such as a fluorophore), or for therapeutic purposes (e.g., a cytotoxin or other therapeutic agent).

Payload: Therapeutic Agents

In some embodiments the payload is a therapeutic agent such as a cytotoxin, radioactive ion, chemotherapeutic, or other therapeutic agent. A cytotoxin or cytotoxic agent includes any agent that is detrimental to cells. Examples include taxol, cytochalasin B, gramicidin D, ethidium bromide, emetine, mitomycin, etoposide, tenoposide, vincristine, vinblastine, colchicin, doxorubicin, daunorubicin, dihydroxy anthracin dione, mitoxantrone, mithramycin, actinomycin D, 1-dehydrotestosterone, glucocorticoids, procaine, tetracaine, lidocaine, propranolol, puromycin, maytansinoids, e.g., maytansinol (see U.S. Pat. No. 5,208,020), CC-1065 (see U.S. Pat. Nos. 5,475,092, 5,585,499, 5,846,545) and analogs or homologs thereof. Radioactive ions include, but are not limited to iodine (e.g., iodine 125 or iodine 131), strontium 89, phosphorous, palladium, cesium, iridium, phosphate, cobalt, yttrium 90, Samarium 153 and praseodymium. Other therapeutic agents include, but are not limited to, antimetabolites (e.g., methotrexate, 6-mercaptopurine, 6-thioguanine, cytarabine, 5-fluorouracil decarbazine), alkylating agents (e.g., mechlorethamine, thioepa chlorambucil, CC-1065, melphalan, carmustine (BSNU) and lomustine (CCNU), cyclothosphamide, busulfan, dibromomannitol, streptozotocin, mitomycin C, and cis-dichlorodiamine platinum (II) (DDP) cisplatin), anthracyclines (e.g., daunorubicin (formerly daunomycin) and doxorubicin), antibiotics (e.g., dactinomycin (formerly actinomycin), bleomycin, mithramycin, and anthramycin (AMC)), and anti-mitotic agents (e.g., vincristine, vinblastine, taxol and maytansinoids).

Payload: Detectable Agents

Examples of detectable substances include various organic small molecules, inorganic compounds, nanoparticles, enzymes or enzyme substrates, fluorescent materials, luminescent materials, bioluminescent materials, chemiluminescent materials, radioactive materials, and contrast agents. Such optically-detectable labels include for example, without limitation, 4-acetamido-4′-isothiocyanatostilbene-2,2′disulfonic acid; acridine and derivatives: acridine, acridine isothiocyanate; 5-(2′-aminoethyl)aminonaphthalene-1-sulfonic acid (EDANS); 4-amino-N-[3-vinylsulfonyl)phenyl]naphthalimide-3,5 disulfonate; N-(4-anilino-1-naphthyl)maleimide; anthranilamide; BODIPY; Brilliant Yellow; coumarin and derivatives; coumarin, 7-amino-4-methylcoumarin (AMC, Coumarin 120), 7-amino-4-trifluoromethylcouluarin (Coumaran 151); cyanine dyes; cyanosine; 4′,6-diaminidino-2-phenylindole (DAPI); 5′5″-dibromopyrogallol-sulfonaphthalein (Bromopyrogallol Red); 7-diethylamino-3-(4′-isothiocyanatophenyl)-4-methylcoumarin; diethylenetriamine pentaacetate; 4,4′-diisothiocyanatodihydro-stilbene-2,2′-disulfonic acid; 4,4′-diisothiocyanatostilbene-2,2′-disulfonic acid; 5-[dimethylamino]-naphthalene-1-sulfonyl chloride (DNS, dansylchloride); 4-dimethylaminophenylazophenyl-4′-isothiocyanate (DABITC); eosin and derivatives; eosin, eosin isothiocyanate, erythrosin and derivatives; erythrosin B, erythrosin, isothiocyanate; ethidium; fluorescein and derivatives; 5-carboxyfluorescein (FAM), 5-(4,6-dichlorotriazin-2-yl)aminofluorescein (DTAF), 2′,7′-dimethoxy-4′5′-dichloro-6-carboxyfluorescein, fluorescein, fluorescein isothiocyanate, QFITC, (XRITC); fluorescamine; IR144; IR1446; Malachite Green isothiocyanate; 4-methylumbelliferoneortho cresolphthalein; nitrotyrosine; pararosaniline; Phenol Red; B-phycoerythrin; o-phthaldialdehyde; pyrene and derivatives: pyrene, pyrene butyrate, succinimidyl 1-pyrene; butyrate quantum dots; Reactive Red 4 (Cibacron™ Brilliant Red 3B-A) rhodamine and derivatives: 6-carboxy-X-rhodamine (ROX), 6-carboxyrhodamine (R6G), lissamine rhodamine B sulfonyl chloride rhodarnine (Rhod), rhodamine B, rhodamine 123, rhodamine×isothiocyanate, sulforhodamine B, sulforhodamine 101, sulfonyl chloride derivative of sulforhodamine 101 (Texas Red); N,N,N′,N tetramethyl-6-carboxyrhodamine (TAMRA); tetramethyl rhodamine; tetramethyl rhodamine isothiocyanate (TRITC); riboflavin; rosolic acid; terbium chelate derivatives; Cyanine-3 (Cy3); Cyanine-5 (Cy5); Cyanine-5.5 (Cy5.5), Cyanine-7 (Cy7); IRD 700; IRD 800; Alexa 647; La Jolta Blue; phthalo cyanine; and naphthalo cyanine. In some embodiments, the detectable label is a fluorescent dye, such as Cy5 and Cy3.

Examples luminescent material includes luminol; examples of bioluminescent materials include luciferase, luciferin, and aequorin.

Examples of suitable radioactive material include ¹⁸F, ⁶⁷Ga, ^(81m)Kr, ⁸²Rb, ¹¹¹In, ¹²³I, ¹³³ xe, ²⁰¹Tl, ¹²⁵I, ³⁵S, ¹⁴C, or ³H, ^(98m)Tc (e.g., as pertechnetate (technetate(VII), TcO₄ ⁻) either directly or indirectly, or other radioisotope detectable by direct counting of radioemission or by scintillation counting.

In addition, contrast agents, e.g., contrast agents for MRI or NMR, for X-ray CT, Raman imaging, optical coherence tomography, absorption imaging, ultrasound imaging, or thermal imaging can be used. Exemplary contrast agents include gold (e.g., gold nanoparticles), gadolinium (e.g., chelated Gd), iron oxides (e.g., superparamagnetic iron oxide (SP10), monocrystalline iron oxide nanoparticles (MIONs), and ultrasmall superparamagnetic iron oxide (USPIO)), manganese chelates (e.g., Mn-DPDP), barium sulfate, iodinated contrast media (iohexol), microbubbles, or perfluorocarbons can also be used.

In some embodiments, the detectable agent is a non-detectable pre-cursor that becomes detectable upon activation. Examples include fluorogenic tetrazine-fluorophore constructs (e.g., tetrazine-BODIPY FL, tetrazine-Oregon Green 488, or tetrazine-BODIPY TMR-X) or enzyme activatable fluorogenic agents (e.g., PROSENSE (VisEn Medical)).

When the compounds are enzymatically labeled with, for example, horseradish peroxidase, alkaline phosphatase, or luciferase, the enzymatic label is detected by determination of conversion of an appropriate substrate to product.

In vitro assays in which these compositions can be used include enzyme linked immunosorbent assays (ELISAs), immunoprecipitations, immunofluorescence, enzyme immunoassay (EIA), radioimmunoassay (RIA), and Western blot analysis.

Labels other than those described herein are contemplated by the present disclosure, including other optically-detectable labels. Labels can be attached to the alternative nucleotide of the present disclosure at any position using standard chemistries such that the label can be removed from the incorporated base upon cleavage of the cleavable linker.

Payload:Cell Penetrating Payloads

In some embodiments, the alternative nucleotides and alternative nucleic acids can also include a payload that can be a cell penetrating moiety or agent that enhances intracellular delivery of the compositions. For example, the compositions can include a cell-penetrating peptide sequence that facilitates delivery to the intracellular space, e.g., HIV-derived TAT peptide, penetratins, transportans, or hCT derived cell-penetrating peptides, see, e.g., Caron et al., (2001) Mol Ther. 3(3):310-8; Langel, Cell-Penetrating Peptides: Processes and Applications (CRC Press, Boca Raton Fla. 2002); El-Andaloussi et al., (2005) Curr Pharm Des. 11(28):3597-611; and Deshayes et al., (2005) Cell Mol Life Sci. 62(16):1839-49. The compositions can also be formulated to include a cell penetrating agent, e.g., liposomes, which enhance delivery of the compositions to the intracellular space.

Payload:Biological Targets

The alternative nucleotides and alternative nucleic acids described herein can be used to deliver a payload to any biological target for which a specific ligand exists or can be generated. The ligand can bind to the biological target either covalently or non-covalently.

Exemplary biological targets include biopolymers, e.g., antibodies, nucleic acids such as RNA and DNA, proteins, enzymes; exemplary proteins include enzymes, receptors, and ion channels. In some embodiments the target is a tissue- or cell-type specific marker, e.g., a protein that is expressed specifically on a selected tissue or cell type. In some embodiments, the target is a receptor, such as, but not limited to, plasma membrane receptors and nuclear receptors; more specific examples include G-protein-coupled receptors, cell pore proteins, transporter proteins, surface-expressed antibodies, HLA proteins, MHC proteins and growth factor receptors.

Synthesis of Alternative Nucleotides

The alternative nucleosides and nucleotides disclosed herein can be prepared from readily available starting materials using the following general methods and procedures. It is understood that where typical or preferred process conditions (i.e., reaction temperatures, times, mole ratios of reactants, solvents, pressures) are given; other process conditions can also be used unless otherwise stated. Optimum reaction conditions may vary with the particular reactants or solvent used, but such conditions can be determined by one skilled in the art by routine optimization procedures.

The processes described herein can be monitored according to any suitable method known in the art. For example, product formation can be monitored by spectroscopic means, such as nuclear magnetic resonance spectroscopy (e.g., ¹H or ¹³C) infrared spectroscopy, spectrophotometry (e.g., UV-visible), or mass spectrometry, or by chromatography such as high performance liquid chromatography (HPLC) or thin layer chromatography.

Preparation of alternative nucleosides and nucleotides can involve the protection and deprotection of various chemical groups. The need for protection and deprotection, and the selection of appropriate protecting groups can be readily determined by one skilled in the art. The chemistry of protecting groups can be found, for example, in Greene, et al., Protective Groups in Organic Synthesis, 2d. Ed., Wiley & Sons, 1991, which is incorporated herein by reference in its entirety.

The reactions of the processes described herein can be carried out in suitable solvents, which can be readily selected by one of skill in the art of organic synthesis. Suitable solvents can be substantially nonreactive with the starting materials (reactants), the intermediates, or products at the temperatures at which the reactions are carried out, i.e., temperatures which can range from the solvent's freezing temperature to the solvent's boiling temperature. A given reaction can be carried out in one solvent or a mixture of more than one solvent. Depending on the particular reaction step, suitable solvents for a particular reaction step can be selected.

Resolution of racemic mixtures of alternative nucleosides and nucleotides can be carried out by any of numerous methods known in the art. An example method includes fractional recrystallization using a “chiral resolving acid” which is an optically active, salt-forming organic acid. Suitable resolving agents for fractional recrystallization methods are, for example, optically active acids, such as the D and L forms of tartaric acid, diacetyltartaric acid, dibenzoyltartaric acid, mandelic acid, malic acid, lactic acid or the various optically active camphorsulfonic acids. Resolution of racemic mixtures can also be carried out by elution on a column packed with an optically active resolving agent (e.g., dinitrobenzoylphenylglycine). Suitable elution solvent composition can be determined by one skilled in the art.

Alternative Nucleic Acids

The present disclosure provides nucleic acids (or polynucleotides), including RNAs such as mRNAs that contain one or more alternative nucleosides (termed “alternative nucleic acids”) or nucleotides as described herein, which have useful properties including the lack of a substantial induction of the innate immune response of a cell into which the mRNA is introduced. Because these alternative nucleic acids enhance the efficiency of protein production, intracellular retention of nucleic acids, and viability of contacted cells, as well as possess reduced immunogenicity, these nucleic acids having these properties are also termed “enhanced nucleic acids” herein.

The term “nucleic acid,” in its broadest sense, includes any compound and/or substance that is or can be incorporated into an oligonucleotide chain. In this context, the term nucleic acid is used synonymously with polynucleotide. Exemplary nucleic acids for use in accordance with the present disclosure include, but are not limited to, one or more of DNA, RNA including messenger mRNA (mRNA), hybrids thereof, RNAi-inducing agents, RNAi agents, siRNAs, shRNAs, miRNAs, antisense RNAs, ribozymes, catalytic DNA, RNAs that induce triple helix formation, aptamers, vectors, described in detail herein.

Provided are alternative nucleic acids containing a translatable region and one, two, or more than two different nucleoside alterations. In some embodiments, the alternative nucleic acid exhibits reduced degradation in a cell into which the nucleic acid is introduced, relative to a corresponding unaltered nucleic acid. Exemplary nucleic acids include ribonucleic acids (RNAs), deoxyribonucleic acids (DNAs), threose nucleic acids (TNAs), glycol nucleic acids (GNAs), or a hybrid thereof. In preferred embodiments, the alternative nucleic acid includes messenger RNAs (mRNAs). As described herein, the nucleic acids of the present disclosure do not substantially induce an innate immune response of a cell into which the mRNA is introduced.

In certain embodiments, it is desirable to intracellularly degrade an alternative nucleic acid introduced into the cell, for example if precise timing of protein production is desired. Thus, the present disclosure provides an alternative nucleic acid containing a degradation domain, which is capable of being acted on in a directed manner within a cell.

Other components of nucleic acid are optional, and are beneficial in some embodiments. For example, a 5′ untranslated region (UTR) and/or a 3′ UTR are provided, wherein either or both may independently contain one or more different nucleoside alterations. In such embodiments, nucleoside alterations may also be present in the translatable region. Also provided are nucleic acids containing a Kozak sequence.

Additionally, provided are nucleic acids containing one or more intronic nucleotide sequences capable of being excised from the nucleic acid.

Further, provided are nucleic acids containing an internal ribosome entry site (IRES). An IRES may act as the sole ribosome binding site, or may serve as one of multiple ribosome binding sites of an mRNA. An mRNA containing more than one functional ribosome binding site may encode several peptides or polypeptides that are translated independently by the ribosomes (“multicistronic mRNA”). When nucleic acids are provided with an IRES, further optionally provided is a second translatable region. Examples of IRES sequences that can be used according to the present disclosure include without limitation, those from picornaviruses (e.g. FMDV), pest viruses (CFFV), polio viruses (PV), encephalomyocarditis viruses (ECMV), foot-and-mouth disease viruses (FMDV), hepatitis C viruses (HCV), classical swine fever viruses (CSFV), murine leukemia virus (MLV), simian immune deficiency viruses (SIV) or cricket paralysis viruses (CrPV).

In some embodiments, the nucleic acid is a compound of Formula XI-a:

wherein:

denotes an optional double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

A is H, OH, phosphoryl, pyrophosphate, sulfate, —NH₂, —SH, an amino acid, a peptide comprising 2 to 12 amino acids;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a)R^(b) and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion;

—OR^(c1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH; and

B is nucleobase;

provided that the ring encompassing the variables A, B, D, U, Z, Y² and Y³ cannot be ribose.

In some embodiments, B is a nucleobase of Formula XII-a, XII-b, or XII-c:

wherein:

-   -   denotes a single or double bond;

X is O or S;

U and W are each independently C or N;

V is O, S, C or N;

wherein when V is C then R¹ is H, C₁₋₆ alkyl, C₁₋₆ alkenyl, C₁₋₆ alkynyl, halo, or —OR^(c), wherein C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl are each optionally substituted with —OH, —NR^(a)R^(b), —SH, —C(O)R^(c), —C(O)OR^(c), —NHC(O)R^(c), or —NHC(O)OR^(c);

and wherein when V is O, S, or N then R¹ is absent;

R² is H, —OR^(c), —SR^(a), —NR^(a)R^(b), or halo;

or when V is C then R¹ and R² together with the carbon atoms to which they are attached can form a 5- or 6-membered ring optionally substituted with 1-4 substituents selected from halo, —OH, —SH, —NR^(a)R^(b), C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, C₁₋₂₀ alkoxy, or C₁₋₂₀ thioalkyl;

R³ is H or C₁₋₂₀ alkyl;

R⁴ is H or C₁₋₂₀ alkyl; wherein when

denotes a double bond then R⁴ is absent, or N—R⁴, taken together, forms a positively charged N substituted with C₁₋₂₀ alkyl;

R^(a) and R^(b) are each independently H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, or C₆₋₂₀ aryl; and

R^(c) is H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group.

In some embodiments, B is a nucleobase of Formula XII-a1, XII-a2, XII-a3, XII-a4, or XII-a5:

In some embodiments, the nucleobase is a pyrimidine or derivative thereof.

In some embodiments, the nucleic acid contains a plurality of structurally unique compounds of Formula XI-a.

In some embodiments, at least 25% of the cytosines are replaced by a compound of Formula XI-a (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100%).

In some embodiments, at least 25% of the uracils are replaced by a compound of Formula XI-a (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100%).

In some embodiments, at least 25% of the cytosines and 25% of the uracils are replaced by a compound of Formula XI-a (e.g., at least about 30%, at least about 35%, at least about 40%, at least about 45%, at least about 50%, at least about 55%, at least about 60%, at least about 65%, at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 95%, or about 100%).

In some embodiments, the nucleic acid is translatable.

In some embodiments, when the nucleic acid includes a nucleotide altered with a linker and payload, for example, as described herein, the nucleotide altered with a linker and payload is on the 3′ end of the nucleic acid.

Major Groove Interacting Partners

As described herein, the phrase “major groove interacting partner” refers RNA recognition receptors that detect and respond to RNA ligands through interactions, e.g. binding, with the major groove face of a nucleotide or nucleic acid. As such, RNA ligands comprising alternative nucleotides or nucleic acids as described herein decrease interactions with major groove binding partners, and therefore decrease an innate immune response, or expression and secretion of pro-inflammatory cytokines, or both.

Example major groove interacting, e.g. binding, partners include, but are not limited to the following nucleases and helicases. Within membranes, TLRs (Toll-like Receptors) 3, 7, and 8 can respond to single- and double-stranded RNAs. Within the cytoplasm, members of the superfamily 2 class of DEX(D/H) helicases and ATPases can sense RNAs to initiate antiviral responses. These helicases include the RIG-I (retinoic acid-inducible gene I) and MDA5 (melanoma differentiation-associated gene 5). Other examples include laboratory of genetics and physiology 2 (LGP2), HIN-200 domain containing proteins, or Helicase-domain containing proteins.

Prevention or Reduction of Innate Cellular Immune Response

The term “innate immune response” includes a cellular response to exogenous single stranded nucleic acids, generally of viral or bacterial origin, which involves the induction of cytokine expression and release, particularly the interferons, and cell death. Protein synthesis is also reduced during the innate cellular immune response. While it is advantageous to eliminate the innate immune response in a cell which is triggered by introduction of exogenous nucleic acids, the present disclosure provides alternative nucleic acids such as mRNAs that substantially reduce the immune response, including interferon signaling, without entirely eliminating such a response. In some embodiments, the immune response is reduced by 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 95%, 99%, 99.9%, or greater than 99.9% as compared to the immune response induced by a corresponding unaltered nucleic acid. Such a reduction can be measured by expression or activity level of Type 1 interferons or the expression of interferon-regulated genes such as the toll-like receptors (e.g., TLR7 and TLR8). Reduction or lack of induction of innate immune response can also be measured by decreased cell death following one or more administrations of alternative RNAs to a cell population; e.g., cell death is 10%, 25%, 50%, 75%, 85%, 90%, 95%, or over 95% less than the cell death frequency observed with a corresponding unaltered nucleic acid. Moreover, cell death may affect fewer than 50%, 40%, 30%, 20%, 10%, 5%, 1%, 0.1%, 0.01% or fewer than 0.01% of cells contacted with the alternative nucleic acids.

In some embodiments, the alternative nucleic acids, including polynucleotides and/or mRNA molecules are alternative in such a way as to not induce, or induce only minimally, an immune response by the recipient cell or organism. Such evasion or avoidance of an immune response trigger or activation is a novel feature of the alternative polynucleotides of the present invention.

The present disclosure provides for the repeated introduction (e.g., transfection) of alternative nucleic acids into a target cell population, e.g., in vitro, ex vivo, or in vivo. The step of contacting the cell population may be repeated one or more times (such as two, three, four, five or more than five times). In some embodiments, the step of contacting the cell population with the alternative nucleic acids is repeated a number of times sufficient such that a predetermined efficiency of protein translation in the cell population is achieved. Given the reduced cytotoxicity of the target cell population provided by the nucleic acid alterations, such repeated transfections are achievable in a diverse array of cell types in vitro and/or in vivo.

Polypeptide Variants

Provided are nucleic acids that encode variant polypeptides, which have a certain identity with a reference polypeptide sequence. The term “identity” as known in the art, refers to a relationship between the sequences of two or more peptides, as determined by comparing the sequences. In the art, “identity” also means the degree of sequence relatedness between peptides, as determined by the number of matches between strings of two or more amino acid residues. “Identity” measures the percent of identical matches between the smaller of two or more sequences with gap alignments (if any) addressed by a particular mathematical model or computer program (i.e., “algorithms”). Identity of related peptides can be readily calculated by known methods. Such methods include, but are not limited to, those described in Computational Molecular Biology, Lesk, A. M., ed., Oxford University Press, New York, 1988; Biocomputing: Informatics and Genome Projects, Smith, D. W., ed., Academic Press, New York, 1993; Computer Analysis of Sequence Data, Part 1, Griffin, A. M., and Griffin, H. G., eds., Humana Press, New Jersey, 1994; Sequence Analysis in Molecular Biology, von Heinje, G., Academic Press, 1987; Sequence Analysis Primer, Gribskov, M. and Devereux, J., eds., M. Stockton Press, New York, 1991; and Carillo et al., SIAM J. Applied Math. 48, 1073 (1988).

In some embodiments, the polypeptide variant has the same or a similar activity as the reference polypeptide. Alternatively, the variant has an altered activity (e.g., increased or decreased) relative to a reference polypeptide. Generally, variants of a particular polynucleotide or polypeptide of the present disclosure will have at least about 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or more sequence identity to that particular reference polynucleotide or polypeptide as determined by sequence alignment programs and parameters described herein and known to those skilled in the art.

As recognized by those skilled in the art, protein fragments, functional protein domains, and homologous proteins are also considered to be within the scope of this present disclosure. For example, provided herein is any protein fragment of a reference protein (meaning a polypeptide sequence at least one amino acid residue shorter than a reference polypeptide sequence but otherwise identical) 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 or greater than 100 amino acids in length In another example, any protein that includes a stretch of about 20, about 30, about 40, about 50, or about 100 amino acids which are about 40%, about 50%, about 60%, about 70%, about 80%, about 90%, about 95%, or about 100% identical to any of the sequences described herein can be utilized in accordance with the present disclosure. In certain embodiments, a protein sequence to be utilized in accordance with the present disclosure includes 2, 3, 4, 5, 6, 7, 8, 9, 10, or more mutations as shown in any of the sequences provided or referenced herein.

Erythropoietin (EPO) and granulocyte colony-stimulating factor (GCSF) are exemplary polypeptides of interest.

Polynucleotide Libraries

Also provided are polynucleotide libraries containing nucleoside alterations, wherein the polynucleotides individually contain a first nucleic acid sequence encoding a polypeptide, such as an antibody, protein binding partner, scaffold protein, and other polypeptides known in the art. Preferably, the polynucleotides are mRNA in a form suitable for direct introduction into a target cell host, which in turn synthesizes the encoded polypeptide.

In certain embodiments, multiple variants of a protein, each with different amino acid alteration(s), are produced and tested to determine the best variant in terms of pharmacokinetics, stability, biocompatibility, and/or biological activity, or a biophysical property such as expression level. Such a library may contain 10, 10², 10³, 10⁴, 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, or over 10⁹ possible variants (including substitutions, deletions of one or more residues, and insertion of one or more residues).

Polypeptide-Nucleic Acid Complexes

Proper protein translation involves the physical aggregation of a number of polypeptides and nucleic acids associated with the mRNA. Provided by the present disclosure are protein-nucleic acid complexes, containing a translatable mRNA having one or more nucleoside alterations (e.g., at least two different nucleoside alterations) and one or more polypeptides bound to the mRNA. Generally, the proteins are provided in an amount effective to prevent or reduce an innate immune response of a cell into which the complex is introduced.

Untranslatable Alternative Nucleic Acids

As described herein, provided are mRNAs having sequences that are substantially not translatable. Such mRNA is effective as a vaccine when administered to a mammalian subject.

Also provided are alternative nucleic acids that contain one or more noncoding regions. Such alternative nucleic acids are generally not translated, but are capable of binding to and sequestering one or more translational machinery component such as a ribosomal protein or a transfer RNA (tRNA), thereby effectively reducing protein expression in the cell. The alternative nucleic acid may contain a small nucleolar RNA (sno-RNA), micro RNA (miRNA), small interfering RNA (siRNA) or Piwi-interacting RNA (piRNA).

Synthesis of Alternative Nucleic Acids

Nucleic acids for use in accordance with the present disclosure may be prepared according to any available technique including, but not limited to chemical synthesis, enzymatic synthesis, which is generally termed in vitro transcription, enzymatic or chemical cleavage of a longer precursor. Methods of synthesizing RNAs are known in the art (see, e.g., Gait, M. J. (ed.) Oligonucleotide synthesis: a practical approach, Oxford [Oxfordshire], Washington, D.C.: IRL Press, 1984; and Herdewijn, P. (ed.) Oligonucleotide synthesis: methods and applications, Methods in Molecular Biology, v. 288 (Clifton, N.J.) Totowa, N.J.: Humana Press, 2005; both of which are incorporated herein by reference).

In certain embodiments, a method for producing an mRNA encoding a polypeptide of interest comprises contacting a cDNA that encodes the protein of interest with an RNA polymerase in the presence of a nucleotide triphosphate mix, wherein from 10% to 50% of the uridine triphosphate comprises 5-methoxy-uracil and 50% to 100% of the cytidine triphosphate comprises 5-methyl-cytosine. The invention also provides mRNA produced by such methods. The methods may include additional steps, such as capping (e.g. the addition of a 5′ cap structure), addition of a poly-A tail and/or formulation into a pharmaceutical composition. The RNA polymerase may be T7 RNA polymerase. The in vitro transcription reaction mixture may include a transcription buffer (such as 400 mM Tris-HCl pH 8.0, or an equivalent) and may include MgCl₂, DTT, Spermidine (or equivalents). An RNase inhibitor may be included. The remaining reaction volume is generally made up with dH₂O. The reaction may be incubated at approximately 37° C. (such as between 30 and 40° C.) and may be incubated for 3 hr-5 hrs (such as 3½ hr-4½ hr, or about 4 hr). The RNA may then be cleaned using DNase and a purification kit.

Alternative nucleic acids need not be uniformly present along the entire length of the molecule. Different nucleotide alterations and/or backbone structures may exist at various positions in the nucleic acid. One of ordinary skill in the art will appreciate that the nucleotide analogs or other alteration(s) may be located at any position(s) of a nucleic acid such that the function of the nucleic acid is not substantially decreased. An alteration may also be a 5′ or 3′ terminal alteration. The nucleic acids may contain at a minimum one and at maximum 100% alternative nucleotides, or any intervening percentage, such as at least 5% alternative nucleotides, at least 10% alternative nucleotides, at least 25% alternative nucleotides, at least 50% alternative nucleotides, at least 80% alternative nucleotides, or at least 90% alternative nucleotides. For example, the nucleic acids may contain an alternative pyrimidine such as uracil or cytosine. In some embodiments, at least 5%, at least 10%, at least 25%, at least 50%, at least 80%, at least 90% or 100% of the uracil in the nucleic acid is replaced with an alternative uracil. The alternative uracil can be replaced by a compound having a single unique structure, or can be replaced by a plurality of compounds having different structures (e.g., 2, 3, 4 or more unique structures). In some embodiments, at least 5%, at least 10%, at least 25%, at least 50%, at least 80%, at least 90% or 100% of the cytosine in the nucleic acid is replaced with an alternative cytosine. The alternative cytosine can be replaced by a compound having a single unique structure, or can be replaced by a plurality of compounds having different structures (e.g., 2, 3, 4 or more unique structures).

Generally, the shortest length of an alternative mRNA of the present disclosure can be the length of an mRNA sequence that is sufficient to encode for a dipeptide. In another embodiment, the length of the mRNA sequence is sufficient to encode for a tripeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a tetrapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a pentapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a hexapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a heptapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for an octapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a nonapeptide. In another embodiment, the length of an mRNA sequence is sufficient to encode for a decapeptide.

Examples of dipeptides that the alternative nucleic acid sequences can encode for include, but are not limited to, carnosine and anserine.

In a further embodiment, the mRNA is greater than 30 nucleotides in length. In another embodiment, the RNA molecule is greater than 35 nucleotides in length. In another embodiment, the length is at least 40 nucleotides. In another embodiment, the length is at least 45 nucleotides. In another embodiment, the length is at least 55 nucleotides. In another embodiment, the length is at least 60 nucleotides. In another embodiment, the length is at least 60 nucleotides. In another embodiment, the length is at least 80 nucleotides. In another embodiment, the length is at least 90 nucleotides. In another embodiment, the length is at least 100 nucleotides. In another embodiment, the length is at least 120 nucleotides. In another embodiment, the length is at least 140 nucleotides. In another embodiment, the length is at least 160 nucleotides. In another embodiment, the length is at least 180 nucleotides. In another embodiment, the length is at least 200 nucleotides. In another embodiment, the length is at least 250 nucleotides. In another embodiment, the length is at least 300 nucleotides. In another embodiment, the length is at least 350 nucleotides. In another embodiment, the length is at least 400 nucleotides. In another embodiment, the length is at least 450 nucleotides. In another embodiment, the length is at least 500 nucleotides. In another embodiment, the length is at least 600 nucleotides. In another embodiment, the length is at least 700 nucleotides. In another embodiment, the length is at least 800 nucleotides. In another embodiment, the length is at least 900 nucleotides. In another embodiment, the length is at least 1000 nucleotides. In another embodiment, the length is at least 1100 nucleotides. In another embodiment, the length is at least 1200 nucleotides. In another embodiment, the length is at least 1300 nucleotides. In another embodiment, the length is at least 1400 nucleotides. In another embodiment, the length is at least 1500 nucleotides. In another embodiment, the length is at least 1600 nucleotides. In another embodiment, the length is at least 1800 nucleotides. In another embodiment, the length is at least 2000 nucleotides. In another embodiment, the length is at least 2500 nucleotides. In another embodiment, the length is at least 3000 nucleotides. In another embodiment, the length is at least 4000 nucleotides. In another embodiment, the length is at least 5000 nucleotides, or greater than 5000 nucleotides.

For example, the alternative nucleic acids described herein can be prepared using methods that are known to those skilled in the art of nucleic acid synthesis.

In some embodiments, the present disclosure provides methods, e.g., enzymatic, of preparing a nucleic acid sequence comprising a nucleotide, wherein the nucleic acid sequence comprises a compound of Formula XI-a:

wherein:

the nucleotide has decreased binding affinity;

denotes an optional double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

A is H, OH, phosphoryl, pyrophosphate, sulfate, —NH₂, —SH, an amino acid, a peptide comprising 2 to 12 amino acids;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a1)R^(b1), and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion;

—OR^(c1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH; and

B is nucleobase;

provided that the ring encompassing the variables A, B, D, U, Z, Y² and Y³ cannot be ribose the method comprising reacting a compound of Formula XIII:

with an RNA polymerase, and a cDNA template.

In some embodiments, the reaction is repeated from 1 to about 7,000 times.

In some embodiments, B is a nucleobase of Formula XII-a, XII-b, or XII-c:

wherein:

denotes a single or double bond;

X is O or S;

U and W are each independently C or N;

V is O, S, C or N;

wherein when V is C then R¹ is H, C₁₋₆ alkyl, C₁₋₆ alkenyl, C₁₋₆ alkynyl, halo, or —OR^(c), wherein C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl are each optionally substituted with —OH, —NR^(a)R^(b), —SH, —C(O)R^(c), —C(O)OR^(c), —NHC(O)R^(c), or —NHC(O)OR^(c);

and wherein when V is O, S, or N then R¹ is absent;

R² is H, —OR^(c), —SR^(c), —NR^(a)R^(b), or halo;

or when V is C then R¹ and R² together with the carbon atoms to which they are attached can form a 5- or 6-membered ring optionally substituted with 1-4 substituents selected from halo, —OH, —SH, —NR^(a)R^(b), C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, C₁₋₂₀ alkoxy, or C₁₋₂₀ thioalkyl;

R³ is H or C₁₋₂₀ alkyl;

R⁴ is H or C₁₋₂₀ alkyl; wherein when denotes a double bond then R⁴ is absent, or N—R⁴, taken together, forms a positively charged N substituted with C₁₋₂₀ alkyl;

R^(a) and R^(b) are each independently H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, or C₆₋₂₀ aryl; and

R^(c) is H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group.

In some embodiments, B is a nucleobase of Formula XII-a1, XII-a2, XII-a3, XII-a4, or XII-a5:

In some embodiments, the methods further comprise a nucleotide selected from the group consisting of adenosine, cytidine, guanosine, and uridine.

In some embodiments, the nucleobase is a pyrimidine or derivative thereof.

In another aspect, the present disclosure provides for methods of amplifying a nucleic acid sequence, the method comprising:

reacting a compound of Formula XI-d:

wherein:

denotes a single or a double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

Z is H, C₁₋₁₂ alkyl, or C₆₋₂₀ aryl, or Z is absent when

denotes a double bond; and

Z can be —CR^(a)R^(b)— and form a bond with A;

A is H, OH, phosphoryl, pyrophosphate, sulfate, —NH₂, —SH, an amino acid, or a peptide comprising 1 to 12 amino acids;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a1)R^(b1), and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

-   -   n is 0, 1, 2, or 3;

m is 0, 1, 2 or 3;

B is nucleobase;

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion; and

—OR^(a1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH;

provided that the ring encompassing the variables A, B, D, U, Z, Y² and Y³ cannot be ribose with a primer, a cDNA template, and an RNA polymerase.

In some embodiments, B is a nucleobase of Formula XII-a, XII-b, or XII-c:

wherein:

denotes a single or double bond;

X is O or S;

U and W are each independently C or N;

V is O, S, C or N;

wherein when V is C then R¹ is H, C₁₋₆ alkyl, C₁₋₆ alkenyl, C₁₋₆ alkynyl, halo, or —OR^(c), wherein C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl are each optionally substituted with —OH, —NR^(a)R^(b), —SH, —C(O)R^(c), —C(O)OR^(c), —NHC(O)R^(c), or —NHC(O)OR^(a);

and wherein when V is O, S, or N then R¹ is absent;

R² is H, —OR^(c), —SR^(c), —NR^(a)R^(b), or halo;

or when V is C then R¹ and R² together with the carbon atoms to which they are attached can form a 5- or 6-membered ring optionally substituted with 1-4 substituents selected from halo, —OH, —SH, —NR^(a)R^(b), C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, C₁₋₂₀ alkoxy, or C₁₋₂₀ thioalkyl;

R³ is H or C₁₋₂₀ alkyl;

R⁴ is H or C₁₋₂₀ alkyl; wherein when

denotes a double bond then R⁴ is absent, or N—R⁴, taken together, forms a positively charged N substituted with C₁₋₂₀ alkyl;

R^(a) and R^(b) are each independently H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, C₂₋₂₀ alkynyl, or C₆₋₂₀ aryl; and

R^(c) is H, C₁₋₂₀ alkyl, C₂₋₂₀ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group.

In some embodiments, B is a nucleobase of Formula XII-a1, XII-a2, XII-a3, XII-a4, or XII-a5:

In some embodiments, the methods further comprise a nucleotide selected from the group consisting of adenosine, cytidine, guanosine, and uridine.

In some embodiments, the nucleobase is a pyrimidine or derivative thereof.

In some embodiments, the present disclosure provides for methods of synthesizing a pharmaceutical nucleic acid, comprising the steps of:

a) providing a complementary deoxyribonucleic acid (cDNA) that encodes a pharmaceutical protein of interest;

b) selecting a nucleotide and

c) contacting the provided cDNA and the selected nucleotide with an RNA polymerase, under conditions such that the pharmaceutical nucleic acid is synthesized.

In further embodiments, the pharmaceutical nucleic acid is a ribonucleic acid (RNA).

In still a further aspect of the present disclosure, the alternative nucleic acids can be prepared using solid phase synthesis methods.

In some embodiments, the present disclosure provides methods of synthesizing a nucleic acid comprising a compound of Formula XI-a:

wherein:

denotes an optional double bond;

- - - denotes an optional single bond;

U is O, S, —NR^(a)—, or —CR^(a)R^(b)— when

denotes a single bond, or U is —CR^(a)— when

denotes a double bond;

A is H, OH, phosphoryl, pyrophosphate, sulfate, —NH₂, —SH, an amino acid, a peptide comprising 2 to 12 amino acids;

X is O or S;

each of Y¹ is independently selected from —OR^(a1), —NR^(a1)R^(b1), and —SR^(a1);

each of Y² and Y³ are independently selected from O, —CR^(a)R^(b)—, NR^(c), S or a linker comprising one or more atoms selected from the group consisting of C, O, N, and S;

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl;

R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group;

R^(a1) and R^(b1) are each independently H or a counterion;

—OR^(c1) is OH at a pH of about 1 or —OR^(c1) is O⁻ at physiological pH; and

B is nucleobase;

provided that the ring encompassing the variables A, B, U, Z, Y² and Y³ cannot be ribose;

comprising:

a1 reacting a nucleotide of Formula XIII-a:

with a phosphoramidite compound of Formula XIII-b:

wherein:

denotes a solid support; and

P¹, P² and P³ are each independently suitable protecting groups;

to provide a nucleic acid of Formula XIV-a:

oxidizing or sulfurizing the nucleic acid of Formula XIV-a to yield a nucleic acid of Formula XlVb:

and c) removing the protecting groups to yield the nucleic acid of Formula XI-a.

In some embodiments, the methods further comprise a nucleotide selected from the group consisting of adenosine, cytidine, guanosine, and uridine.

In some embodiments, R is a nucleobase of Formula XIII:

wherein:

V is N or positively charged NR^(c);

R³ is NR^(c)R^(d), —OR^(a), or —SR^(a);

R⁴ is H or can optionally form a bond with Y³;

R⁵ is H, —NR^(c)R^(d), or —OR^(a);

R^(a) and R^(b) are each independently H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, C₂₋₁₂ alkynyl, or C₆₋₂₀ aryl; and R^(c) is H, C₁₋₁₂ alkyl, C₂₋₁₂ alkenyl, phenyl, benzyl, a polyethylene glycol group, or an amino-polyethylene glycol group.

In some embodiments, steps a) and b) are repeated from 1 to about 10,000 times.

5′ Capping

The 5′ cap structure of an mRNA is involved in nuclear export, increasing mRNA stability and binds the mRNA Cap Binding Protein (CBP), which is responsible for mRNA stability in the cell and translation competency through the association of CBP with poly(A) binding protein to form the mature cyclic mRNA species. The cap further assists the removal of 5′ proximal introns removal during mRNA splicing.

Endogenous mRNA molecules may be 5′-end capped generating a 5′-ppp-5′-triphosphate linkage between a terminal guanosine cap residue and the 5′-terminal transcribed sense nucleotide of the mRNA. This 5′-guanylate cap may then be methylated to generate an N7-methyl-guanylate residue. The ribose sugars of the terminal and/or anteterminal transcribed nucleotides of the 5′ end of the mRNA may optionally also be 2′-O-methylated. 5′-decapping through hydrolysis and cleavage of the guanylate cap structure may target a nucleic acid molecule, such as an mRNA molecule, for degradation.

Alterations to the nucleic acids of the present invention may generate a non-hydrolyzable cap structure preventing decapping and thus increasing mRNA half-life. Because cap structure hydrolysis requires cleavage of 5′-ppp-5′ phosphorodiester linkages, alternative nucleotides may be used during the capping reaction. For example, a Vaccinia Capping Enzyme from New England Biolabs (Ipswich, Mass.) may be used with α-thio-guanosine nucleotides according to the manufacturer's instructions to create a phosphorothioate linkage in the 5′-ppp-5′ cap. Additional alternative guanosine nucleotides may be used such as α-methyl-phosphonate and seleno-phosphate nucleotides.

Additional alterations include, but are not limited to, 2′-O-methylation of the ribose sugars of 5′-terminal and/or 5′-anteterminal nucleotides of the mRNA (as mentioned above) on the 2′-hydroxyl group of the sugar ring. Multiple distinct 5′-cap structures can be used to generate the 5′-cap of a nucleic acid molecule, such as an mRNA molecule.

5′ Cap structures include those described in International Patent Publication Nos. WO2008127688, WO 2008016473, and WO 2011015347, each of which is incorporated herein by reference in its entirety.

Cap analogs, which herein are also referred to as synthetic cap analogs, chemical caps, chemical cap analogs, or structural or functional cap analogs, differ from natural (i.e. endogenous, wild-type or physiological) 5′-caps in their chemical structure, while retaining cap function. Cap analogs may be chemically (i.e. non-enzymatically) or enzymatically synthesized and/linked to a nucleic acid molecule.

For example, the Anti-Reverse Cap Analog (ARCA) cap contains two guanosines linked by a 5′-5′-triphosphate group, wherein one guanosine contains an N7 methyl group as well as a 3′-O-methyl group (i.e., N7,3′-O-dimethyl-guanosine-5′-triphosphate-5′-guanosine (m⁷G-3′mppp-G; which may equivalently be designated 3′O-Me-m7G(5′)ppp(5′)G). The 3′-O atom of the other, unaltered, guanosine becomes linked to the 5′-terminal nucleotide of the capped nucleic acid molecule (e.g. an mRNA or mRNA). The N7- and 3′-O-methylated guanosine provides the terminal moiety of the capped nucleic acid molecule (e.g. mRNA or mRNA).

Another exemplary cap is mCAP, which is similar to ARCA but has a 2′-O-methyl group on guanosine (i.e., N7,2′-O-dimethyl-guanosine-5′-triphosphate-5′-guanosine, m⁷Gm-ppp-G).

In one embodiment, the cap is a dinucleotide cap analog. As a non-limiting example, the dinucleotide cap analog may be altered at different phosphate positions with a boranophosphate group or a phophoroselenoate group such as the dinucleotide cap analogs described in U.S. Pat. No. 8,519,110, the contents of which are herein incorporated by reference in its entirety.

In another embodiment, the cap analog is a N7-(4-chlorophenoxyethyl) substituted dicnucleotide form of a cap analog known in the art and/or described herein. Non-limiting examples of a N7-(4-chlorophenoxyethyl) substituted dinucleotide form of a cap analog include a N7-(4-chlorophenoxyethyl)-G(5′)ppp(5′)G and a N7-(4-chlorophenoxyethyl)-m^(3′-O)G(5′)ppp(5′)G cap analog (See e.g., the various cap analogs and the methods of synthesizing cap analogs described in Kore et al. Bioorganic & Medicinal Chemistry 2013 21:4570-4574; the contents of which are herein incorporated by reference in its entirety). In another embodiment, a cap analog of the present invention is a 4-chloro/bromophenoxyethyl analog.

While cap analogs allow for the concomitant capping of a nucleic acid molecule in an in vitro transcription reaction, up to 20% of transcripts remain uncapped. This, as well as the structural differences of a cap analog from endogenous 5′-cap structures of nucleic acids produced by the endogenous, cellular transcription machinery, may lead to reduced translational competency and reduced cellular stability.

Alternative nucleic acids of the invention may also be capped post-transcriptionally, using enzymes, in order to generate more authentic 5′-cap structures. As used herein, the phrase “more authentic” refers to a feature that closely mirrors or mimics, either structurally or functionally, an endogenous or wild type feature. That is, a “more authentic” feature is better representative of an endogenous, wild-type, natural or physiological cellular function and/or structure as compared to synthetic features or analogs, of the prior art, or which outperforms the corresponding endogenous, wild-type, natural or physiological feature in one or more respects. Non-limiting examples of more authentic 5′-cap structures of the present invention are those which, among other things, have enhanced binding of cap binding proteins, increased half life, reduced susceptibility to 5′ endonucleases and/or reduced 5′ decapping, as compared to synthetic 5′-cap structures known in the art (or to a wild-type, natural or physiological 5′-cap structure). For example, recombinant Vaccinia Virus Capping Enzyme and recombinant 2′-O-methyltransferase enzyme can create a canonical 5′-5′-triphosphate linkage between the 5′-terminal nucleotide of an mRNA and a guanosine cap nucleotide wherein the cap guanosine contains an N7 methylation and the 5′-terminal nucleotide of the mRNA contains a 2′-O-methyl. Such a structure is termed the Cap1 structure. This cap results in a higher translational-competency and cellular stability and a reduced activation of cellular pro-inflammatory cytokines, as compared, e.g., to other 5′cap analog structures known in the art. Cap structures include 7mG(5′)ppp(5′)N,pN2p (cap 0), 7mG(5′)ppp(5′)NImpNp (cap 1), 7mG(5′)-ppp(5′)NImpN2mp (cap 2) and m(7)Gpppm(3)(6,6,2′)Apm(2′)Apm(2′)Cpm(2)(3,2′)Up (cap 4).

Because the alternative nucleic acids may be capped post-transcriptionally, and because this process is more efficient, nearly 100% of the alternative nucleic acids may be capped. This is in contrast to ˜80% when a cap analog is linked to an mRNA in the course of an in vitro transcription reaction.

According to the present invention, 5′ terminal caps may include endogenous caps or cap analogs. According to the present invention, a 5′ terminal cap may comprise a guanosine analog. Useful guanosine analogs include inosine, N1-methyl-guanosine, 2′fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, and 2-azido-guanosine.

In one embodiment, the nucleic acids described herein may contain a modified 5′-cap. A modification on the 5′-cap may increase the stability of mRNA, increase the half-life of the mRNA, and could increase the mRNA translational efficiency. The modified 5′-cap may include, but is not limited to, one or more of the following modifications: modification at the 2′ and/or 3′ position of a capped guanosine triphosphate (GTP), a replacement of the sugar ring oxygen (that produced the carbocyclic ring) with a methylene moiety (CH₂), a modification at the triphosphate bridge moiety of the cap structure, or a modification at the nucleobase (G) moiety.

The 5′-cap structure that may be modified includes, but is not limited to, the caps described herein such as Cap0 having the substrate structure for cap dependent translation of:

or Cap1 having the substrate structure for cap dependent translation of:

As a non-limiting example, the modified 5′-cap may have the substrate structure for cap dependent translation of:

where R₁ and R₂ are defined in Table 7:

TABLE 7 R₁ and R₂ groups for CAP-022 to CAP096. Cap Structure Number R₁ R₂ CAP-022 C₂H₅ (Ethyl) H CAP-023 H C₂H₅ (Ethyl) CAP-024 C₂H₅ (Ethyl) C₂H₅ (Ethyl) CAP-025 C₃H₇ (Propyl) H CAP-026 H C₃H₇ (Propyl) CAP-027 C₃H₇ (Propyl) C₃H₇ (Propyl) CAP-028 C₄H₉ (Butyl) H CAP-029 H C₄H₉ (Butyl) CAP-030 C₄H₉ (Butyl) C₄H₉ (Butyl) CAP-031 C₅H₁₁ (Pentyl) H CAP-032 H C₅H₁₁ (Pentyl) CAP-033 C₅H₁₁ (Pentyl) C₅H₁₁ (Pentyl) CAP-034 H₂C—C═CH (Propargyl) H CAP-035 H H₂C—C═CH (Propargyl) CAP-036 H₂C—C═CH (Propargyl) H₂C—C═CH (Propargyl) CAP-037 CH₂CH═CH₂ (Allyl) H CAP-038 H CH₂CH═CH₂ (Allyl) CAP-039 CH₂CH═CH₂ (Allyl) CH₂CH═CH₂ (Allyl) CAP-040 CH₂OCH₃ (MOM) H CAP-041 H CH₂OCH₃ (MOM) CAP-042 CH₂OCH₃ (MOM) CH₂OCH₃ (MOM) CAP-043 CH₂OCH₂CH₂OCH₃ (MEM) H CAP-044 H CH₂OCH₂CH₂OCH₃ (MEM) CAP-045 CH₂OCH₂CH₂OCH₃ (MEM) CH₂OCH₂CH₂OCH₃ (MEM) CAP-046 CH₂SCH₃ (MEM) H CAP-047 H CH₂SCH₃ (MEM) CAP-048 CH₂SCH₃ (MEM) CH₂SCH₃ (MEM) CAP-049 CH₂C₆H₅ (Benzyl) H CAP-050 H CH₂C₆H₅ (Benzyl) CAP-051 CH₂C₆H₅ (Benzyl) CH₂C₆H₅ (Benzyl) CAP-052 CH₂OCH₂C₆H₅ (BOM) H CAP-053 H CH₂OCH₂C₆H₅ (BOM) CAP-054 CH₂OCH₂C₆H₅ (BOM) CH₂OCH₂C₆H₅ (BOM) CAP-055 CH₂C₆H₄—OMe (p- H Methoxybenzyl) CAP-056 H CH₂C₆H₄—OMe (p- Methoxybenzyl) CAP-057 CH₂C₆H₄—OMe (p- CH₂C₆H₄—OMe (p- Methoxybenzyl) Methoxybenzyl) CAP-058 CH₂C₆H₄—NO₂ (p- H Nitrobenzyl) CAP-059 H CH₂C₆H₄—NO₂ (p- Nitrobenzyl) CAP-060 CH₂C₆H₄—NO₂ (p- CH₂C₆H₄—NO₂ (p- Nitrobenzyl) Nitrobenzyl) CAP-061 CH₂C₆H₄-X (p-Halobenzyl) H where X = F, Cl, Br or I CAP-062 H CH₂C₆H₄-X (p-Halobenzyl) where X = F, Cl, Br or I CAP-063 CH₂C₆H₄-X (p-Halobenzyl) CH₂C₆H₄-X (p-Halobenzyl) where X = F, Cl, Br or I where X = F, Cl, Br or I CAP-064 CH₂C₆H₄—N₃ (p-Azidobenzyl) H CAP-065 H CH₂C₆H₄—N₃ (p-Azidobenzyl) CAP-066 CH₂C₆H₄—N₃ (p-Azidobenzyl) CH₂C₆H₄—N₃ (p-Azidobenzyl) CAP-067 CH₂C₆H₄—CF₃ (p- H Trifluoromethylbenzyl) CAP-068 H CH₂C₆H₄—CF₃ (p- Trifluoromethylbenzyl) CAP-069 CH₂C₆H₄—CF₃ (p- CH₂C₆H₄—CF₃ (p- Trifluoromethylbenzyl) Trifluoromethylbenzyl) CAP-070 CH₂C₆H₄—OCF₃ (p- H Trifluoromethoxybenzyl) CAP-071 H CH₂C₆H₄—OCF₃ (p- Trifluoromethoxybenzyl) CAP-072 CH₂C₆H₄—OCF₃ (p- CH₂C₆H₄—OCF₃ (p- Trifluoromethoxybenzyl) Trifluoromethoxybenzyl) CAP-073 CH₂C₆H₃—(CF₃)₂ [2,4- H bis(Trifluoromethyl)benzyl] CAP-074 H CH₂C₆H₃—(CF₃)₂ [2,4- bis(Trifluoromethyl)benzyl] CAP-075 CH₂C₆H₃—(CF₃)₂ [2,4- CH₂C₆H₃—(CF₃)₂ [2,4- bis(Trifluoromethyl)benzyl] bis(Trifluoromethyl)benzyl] CAP-076 Si(C₆H₅)₂C₄H₉ (t- H Butyldiphenylsilyl) Si(C₆H₅)₂C₄H₉ (t- CAP-077 H Butyldiphenylsilyl) CAP-078 Si(C₆H₅)₂C₄H₉ (t- Si(C₆H₅)₂C₄H₉ (t- Butyldiphenylsilyl) Butyldiphenylsilyl) CAP-079 CH₂CH₂CH═CH₂ (Homoallyl) H CAP-080 H CH₂CH₂CH═CH₂ (Homoallyl) CAP-081 CH₂CH₂CH═CH₂ (Homoallyl) CH₂CH₂CH═CH₂ (Homoallyl) CAP-082 P(O)(OH)₂ (MP) H CAP-083 H P(O)(OH)₂ (MP) CAP-084 P(O)(OH)₂ (MP) P(O)(OH)₂ (MP) CAP-085 P(O)(SH)₂ (Thio-MP) H CAP-086 H P(O)(SH)₂ (Thio-MP) CAP-087 P(O)(SH)₂ (Thio-MP) P(O)(SH)₂ (Thio-MP) CAP-088 P(O)(CH₃)(OH) H (Methylphophonate) CAP-089 H P(O)(CH₃)(OH) (Methylphophonate) CAP-090 P(O)(CH₃)(OH) P(O)(CH₃)(OH) (Methylphophonate) (Methylphophonate) CAP-091 PN(^(i)Pr)₂(OCH₂CH₂CN) H (Phosphoramidite) CAP-092 H PN(^(i)Pr)₂(OCH₂CH₂CN) (Phosphoramidite) CAP-093 PN(^(i)Pr)₂(OCH₂CH₂CN) PN(^(i)Pr)₂(OCH₂CH₂CN) (Phosphoramidite) (Phosphoramidite) CAP-094 SO₂CH₃ (Methanesulfonic H acid) CAP-095 H SO₂CH₃ (Methanesulfonic acid) CAP-096 SO₂CH₃ (Methanesulfonic SO₂CH₃ (Methanesulfonic acid) acid) or

where R₁ and R₂ are defined in Table 8:

TABLE 8 R₁ and R₂ groups for CAP-097 to CAP111. Cap Structure Number R₁ R₂ CAP-097 NH₂ (amino) H CAP-098 H NH₂ (amino) CAP-099 NH₂ (amino) NH₂ (amino) CAP-100 N₃ (Azido) H CAP-101 H N₃ (Azido) CAP-102 N₃ (Azido) N₃ (Azido) CAP-103 X (Halo: F, Cl, Br, I) H CAP-104 H X (Halo: F, Cl, Br, I) CAP-105 X (Halo: F, Cl, Br, I) X (Halo: F, Cl, Br, I) CAP-106 SH (Thiol) H CAP-107 H SH (Thiol) CAP-108 SH (Thiol) SH (Thiol) CAP-109 SCH₃ (Thiomethyl) H CAP-110 H SCH₃ (Thiomethyl) CAP-111 SCH₃ (Thiomethyl) SCH₃ (Thiomethyl)

In Table 7, “MOM” stands for methoxymethyl, “MEM” stands for methoxyethoxymethyl, “MTM” stands for methylthiomethyl, “BOM” stands for benzyloxymethyl and “MP” stands for monophosphonate.

In a non-limiting example, the modified 5′ cap may have the substrate structure for vaccinia mRNA capping enzyme of:

where R₁ and R₂ are defined in Table 9:

TABLE 9 R₁ and R₂ gropups for CAP-136 to CAP-210. Cap Structure Number R₁ R₂ CAP-136 C₂H₅ (Ethyl) H CAP-137 H C₂H₅ (Ethyl) CAP-138 C₂H₅ (Ethyl) C₂H₅ (Ethyl) CAP-139 C₃H₇ (Propyl) H CAP-140 H C₃H₇ (Propyl) CAP-141 C₃H₇ (Propyl) C₃H₇ (Propyl) CAP-142 C₄H₉ (Butyl) H CAP-143 H C₄H₉ (Butyl) CAP-144 C₄H₉ (Butyl) C₄H₉ (Butyl) CAP-145 C₅H₁₁ (Pentyl) H CAP-146 H C₅H₁₁ (Pentyl) CAP-147 C₅H₁₁ (Pentyl) C₅H₁₁ (Pentyl) CAP-148 H₂C—C═CH (Propargyl) H CAP-149 H H₂C—C═CH (Propargyl) CAP-150 H₂C—C═CH (Propargyl) H₂C—C═CH (Propargyl) CAP-151 CH₂CH═CH₂ (Allyl) H CAP-152 H CH₂CH═CH₂ (Allyl) CAP-153 CH₂CH═CH₂ (Allyl) CH₂CH═CH₂ (Allyl) CAP-154 CH₂OCH₃ (MOM) H CAP-155 H CH₂OCH₃ (MOM) CAP-156 CH₂OCH₃ (MOM) CH₂OCH₃ (MOM) CAP-157 CH₂OCH₂CH₂OCH₃ (MEM) H CAP-158 H CH₂OCH₂CH₂OCH₃ (MEM) CAP-159 CH₂OCH₂CH₂OCH₃ (MEM) CH₂OCH₂CH₂OCH₃ (MEM) CAP-160 CH₂SCH₃ (MTM) H CAP-161 H CH₂SCH₃ (MTM) CAP-162 CH₂SCH₃ (MTM) CH₂SCH₃ (MTM) CAP-163 CH₂C₆H₅ (Benzyl) H CAP-164 H CH₂C₆H₅ (Benzyl) CAP-165 CH₂C₆H₅ (Benzyl) CH₂C₆H₅ (Benzyl) CAP-166 CH₂OCH₂C₆H₅ (BOM) H CAP-167 H CH₂OCH₂C₆H₅ (BOM) CAP-168 CH₂OCH₂C₆H₅ (BOM) CH₂OCH₂C₆H₅ (BOM) CAP-169 CH₂C₆H₄—OMe (p- H Methoxybenzyl) CAP-170 H CH₂C₆H₄—OMe (p-Methoxybenzyl) CAP-171 CH₂C₆H₄—OMe (p- CH₂C₆H₄—OMe (p-Methoxybenzyl) Methoxybenzyl) CAP-172 CH₂C₆H₄—NO₂ (p-Nitrobenzyl) H CAP-173 H CH₂C₆H₄—NO₂ (p-Nitrobenzyl) CAP-174 CH₂C₆H₄—NO₂ (p-Nitrobenzyl) CH₂C₆H₄—NO₂ (p-Nitrobenzyl) CAP-175 CH₂C₆H₄-X (p-Halobenzyl) H where X = F, Cl, Br or I CAP-176 H CH₂C₆H₄-X (p-Halobenzyl) where X = F, Cl, Br or I CAP-177 CH₂C₆H₄-X (p-Halobenzyl) CH₂C₆H₄-X (p-Halobenzyl) where X = F, where X = F, Cl, Br or I Cl, Br or I CAP-178 CH₂C₆H₄—N₃ (p-Azidobenzyl) H CAP-179 H CH₂C₆H₄—N₃ (p-Azidobenzyl) CAP-180 CH₂C₆H₄—N₃ (p-Azidobenzyl) CH₂C₆H₄—N₃ (p-Azidobenzyl) CAP-181 CH₂C₆H₄—CF₃ (p- Trifluoromethylbenzyl) H CAP-182 H CH₂C₆H₄—CF₃ (p-Trifluoromethylbenzyl) CAP-183 CH₂C₆H₄—CF₃ (p- CH₂C₆H₄—CF₃ (p-Trifluoromethylbenzyl) Trifluoromethylbenzyl) CAP-184 CH₂C₆H₄—OCF₃ (p- H Trifluoromethoxybenzyl) CAP-185 H CH₂C₆H₄—OCF₃ (p- Trifluoromethoxybenzyl) CAP-186 CH₂C₆H₄—OCF₃ (p- CH₂C₆H₄—OCF₃ (p- Trifluoromethoxybenzyl) Trifluoromethoxybenzyl) CAP-187 CH₂C₆H₄—OCF₃ (p- CH₂C₆H₄—OCF₃ (p- Trifluoromethoxybenzyl) Trifluoromethoxybenzyl) CAP-188 CH₂C₆H₃—(CF₃)₂ [2,4- H bis(Trifluoromethyl)benzyl] CAP-189 H CH₂C₆H₃—(CF₃)₂ [2,4- bis(Trifluoromethyl)benzyl] CAP-190 Si(C₆H₅)₂C₄H₉ (t- H Butyldiphenylsilyl) CAP-191 H Si(C₆H₅)₂C₄H₉ (t-Butyldiphenylsilyl) CAP-192 Si(C₆H₅)₂C₄H₉ (t- Si(C₆H₅)₂C₄H₉ (t-Butyldiphenylsilyl) Butyldiphenylsilyl) CAP-193 CH₂CH₂CH═CH₂ (Homoallyl) H CAP-194 H CH₂CH₂CH═CH₂ (Homoallyl) CAP-195 CH₂CH₂CH═CH₂ (Homoallyl) CH₂CH₂CH═CH₂ (Homoallyl) CAP-196 P(O)(OH)₂ (MP) H CAP-197 H P(O)(OH)₂ (MP) CAP-198 P(O)(OH)₂ (MP) P(O)(OH)₂ (MP) CAP-199 P(O)(SH)₂ (Thio-MP) H CAP-200 H P(O)(SH)₂ (Thio-MP) CAP-201 P(O)(SH)₂ (Thio-MP) P(O)(SH)₂ (Thio-MP) CAP-202 P(O)(CH₃)(OH) H (Methylphophonate) CAP-203 H P(O)(CH₃)(OH) (Methylphophonate) CAP-204 P(O)(CH₃)(OH) P(O)(CH₃)(OH) (Methylphophonate) (Methylphophonate) CAP-205 PN(^(i)Pr)₂(OCH₂CH₂CN) H (Phosphoramidite) CAP-206 H PN(^(i)Pr)₂(OCH₂CH₂CN) (Phosphoramidite) CAP-207 PN(^(i)Pr)₂(OCH₂CH₂CN) PN(^(i)Pr)₂(OCH₂CH₂CN) (Phosphoramidite) (Phosphoramidite) CAP-208 SO₂CH₃ (Methanesulfonic H acid) CAP-209 H SO₂CH₃ (Methanesulfonic acid) CAP-210 SO₂CH₃ (Methanesulfonic SO₂CH₃ (Methanesulfonic acid) acid) or

where R₁ and R₂ are defined in Table 10:

TABLE 10 R₁ and R₂ groups for CAP-211 to 225. Cap Structure Number R₁ R₂ CAP-211 NH₂ (amino) H CAP-212 H NH₂ (amino) CAP-213 NH₂ (amino) NH₂ (amino) CAP-214 N₃ (Azido) H CAP-215 H N₃ (Azido) CAP-216 N₃ (Azido) N₃ (Azido) CAP-217 X (Halo: F, Cl, Br, I) H CAP-218 H X (Halo: F, Cl, Br, I) CAP-219 X (Halo: F, Cl, Br, I) X (Halo: F, Cl, Br, I) CAP-220 SH (Thiol) H CAP-221 H SH (Thiol) CAP-222 SH (Thiol) SH (Thiol) CAP-223 SCH₃ (Thiomethyl) H CAP-224 H SCH₃ (Thiomethyl) CAP-225 SCH₃ (Thiomethyl) SCH₃ (Thiomethyl)

In Table 9, “MOM” stands for methoxymethyl, “MEM” stands for methoxyethoxymethyl, “MTM” stands for methylthiomethyl, “BOM” stands for benzyloxymethyl and “MP” stands for monophosphonate.

In another non-limiting example, of the modified capping structure substrates CAP-112-CAP-225 could be added in the presence of vaccinia capping enzyme with a component to create enzymatic activity such as, but not limited to, S-adenosylmethionine (AdoMet), to form a modified cap for mRNA.

In one embodiment, the replacement of the sugar ring oxygen (that produced the carbocyclic ring) with a methylene moiety (CH₂) could create greater stability to the C—N bond against phosphorylases as the C—N bond is resitant to acid or enzymatic hydrolysis. The methylene moiety may also increase the stability of the triphosphate bridge moiety and thus increasing the stability of the mRNA. As a non-limiting example, the cap substrate structure for cap dependent translation may have the structure such as, but not limited to, CAP-014 and CAP-015 and/or the cap substrate structure for vaccinia mRNA capping enzyme such as, but not limited to, CAP-123 and CAP-124. In another example, CAP-112-CAP-122 and/or CAP-125-CAP-225, can be modified by replacing the sugar ring oxygen (that produced the carbocyclic ring) with a methylene moiety (CH₂).

In another embodiment, the triphosphate bridge may be modified by the replacement of at least one oxygen with sulfur (thio), a borane (BH₃) moiety, a methyl group, an ethyl group, a methoxy group and/or combinations thereof. This modification could increase the stability of the mRNA towards decapping enzymes. As a non-limiting example, the cap substrate structure for cap dependent translation may have the structure such as, but not limited to, CAP-016-CAP-021 and/or the cap substrate structure for vaccinia mRNA capping enzyme such as, but not limited to, CAP-125-CAP-130. In another example, CAP-003-CAP-015, CAP-022-CAP-124 and/or CAP-131-CAP-225, can be modified on the triphosphate bridge by replacing at least one of the triphosphate bridge oxygens with sulfur (thio), a borane (BH₃) moiety, a methyl group, an ethyl group, a methoxy group and/or combinations thereof.

In one embodiment, CAP-001-134 and/or CAP-136-CAP-225 may be modified to be a thioguanosine analog similar to CAP-135. The thioguanosine analog may comprise additional modifications such as, but not limited to, a modification at the triphosphate moiety (e.g., thio, BH₃, CH₃, C₂H₅, OCH₃, S and S with OCH₃), a modification at the 2′ and/or 3′ positions of 6-thio guanosine as described herein and/or a replacement of the sugar ring oxygen (that produced the carbocyclic ring) as described herein.

In one embodiment, CAP-001-121 and/or CAP-123-CAP-225 may be altered to be an alternative 5′ cap similar to CAP-122. The alternative 5′ cap may comprise additional alterations such as, but not limited to, an alteration at the triphosphate moiety (e.g., thio, BH₃, CH₃, C₂H₅, OCH₃, S and S with OCH₃), an alteration at the 2′ and/or 3′ positions of 6-thio guanosine as described herein and/or a replacement of the sugar ring oxygen (that produced the carbocyclic ring) as described herein.

In one embodiment, the 5′ cap modification may be the attachment of biotin or conjugation at the 2′ or 3′ position of a GTP.

In another embodiment, the 5′ cap modification may include a CF₂ modified triphosphate moiety.

In another embodiment, the triphosphate bridge of any of the cap structures described herein may be replaced with a tetraphosphate or pentaphosphate bridge. Examples of tetraphosphate and pentaphosphate containing bridges and other cap modifications are described in Jemielity, J. et al. RNA 2003 9:1108-1122; Grudzien-Nogalska, E. et al. Methods Mol. Biol. 2013 969:55-72; and Grudzien, E. et al. RNA, 2004 10:1479-1487, each of which is incorporated herein by reference in its entirety.

Terminal Architecture Alterations: Stem Loop

In one embodiment, the nucleic acids of the present invention may include a stem loop such as, but not limited to, a histone stem loop. The stem loop may be a nucleotide sequence that is about 25 or about 26 nucleotides in length such as, but not limited to, SEQ ID NOs: 7-17 as described in International Patent Publication No. WO2013103659, incorporated herein by reference in its entirety. The histone stem loop may be located 3′ relative to the coding region (e.g., at the 3′ terminus of the coding region). As a non-limiting example, the stem loop may be located at the 3′ end of a nucleic acid described herein.

In one embodiment, the stem loop may be located in the second terminal region. As a non-limiting example, the stem loop may be located within an untranslated region (e.g., 3′ UTR) in the second terminal region.

In one embodiment, the nucleic acid such as, but not limited to mRNA, which comprises the histone stem loop may be stabilized by the addition of at least one chain terminating nucleoside. Not wishing to be bound by theory, the addition of at least one chain terminating nucleoside may slow the degradation of a nucleic acid and thus can increase the half-life of the nucleic acid.

In one embodiment, the chain terminating nucleoside may be, but is not limited to, those described in International Patent Publication No. WO2013103659, incorporated herein by reference in its entirety. In another embodiment, the chain terminating nucleosides which may be used with the present invention includes, but is not limited to, 3′-deoxyadenosine (cordycepin), 3′-deoxyuridine, 3′-deoxycytidine, 3′-deoxyguanosine, 3′-deoxythymidine, 2′,3′-dideoxynucleosides, such as 2′,3′-dideoxyadenosine, 2,3′-dideoxyuridine, 2′,3′-dideoxycytidine, 2′,3′-dideoxyguanosine, 2′,3′-dideoxythymidine, a 2′-deoxynucleoside, or a —O— methylnucleoside.

In another embodiment, the nucleic acid such as, but not limited to mRNA, which comprises the histone stem loop may be stabilized by an alteration to the 3′ region of the nucleic acid that can prevent and/or inhibit the addition of oligio(U) (see e.g., International Patent Publication No. WO2013103659, incorporated herein by reference in its entirety).

In yet another embodiment, the nucleic acid such as, but not limited to mRNA, which comprises the histone stem loop may be stabilized by the addition of an oligonucleotide that terminates in a 3′-deoxynucleoside, 2′,3′-dideoxynucleoside 3′-O-methylnucleosides, 3′-O-ethylnucleosides, 3′-arabinosides, and other alternative nucleosides known in the art and/or described herein.

In one embodiment, the nucleic acids of the present invention may include a histone stem loop, a polyA tail sequence and/or a 5′ cap structure. The histone stem loop may be before and/or after the polyA tail sequence. The nucleic acids comprising the histone stem loop and a polyA tail sequence may include a chain terminating nucleoside described herein.

In another embodiment, the nucleic acids of the present invention may include a histone stem loop and a 5′ cap structure. The 5′ cap structure may include, but is not limited to, those described herein and/or known in the art.

In one embodiment, the conserved stem loop region may comprise a miR sequence described herein. As a non-limiting example, the stem loop region may comprise the seed sequence of a miR sequence described herein. In another non-limiting example, the stem loop region may comprise a miR-122 seed sequence.

In another embodiment, the conserved stem loop region may comprise a miR sequence described herein and may also include a TEE sequence.

In one embodiment, the incorporation of a miR sequence and/or a TEE sequence changes the shape of the stem loop region which may increase and/or decrease translation. (see e.g, Kedde et al. A Pumilio-induced RNA structure switch in p27-3′ UTR controls miR-221 and miR-22 accessibility. Nature Cell Biology. 2010, herein incorporated by reference in its entirety).

In one embodiment, the alternative nucleic acids described herein may comprise at least one histone stem-loop and a polyA sequence or polyadenylation signal. Non-limiting examples of nucleic acid sequences encoding for at least one histone stem-loop and a polyA sequence or a polyadenylation signal are described in International Patent Publication Nos. WO2013120497, WO2013120629, WO2013120500, WO2013120627, WO2013120498, WO2013120626, WO2013120499 and WO2013120628, the contents of each of which are incorporated herein by reference in their entirety. In one embodiment, the nucleic acid encoding for a histone stem loop and a polyA sequence or a polyadenylation signal may code for a pathogen antigen or fragment thereof such as the nucleic acid sequences described in International Patent Publication Nos. WO2013120499 and WO2013120628, the contents of both of which are incorporated herein by reference in their entirety. In another embodiment, the nucleic acid encoding for a histone stem loop and a polyA sequence or a polyadenylation signal may code for a therapeutic protein such as the nucleic acid sequences described in International Patent Publication Nos. WO2013120497 and WO2013120629, the contents of both of which are incorporated herein by reference in their entirety. In one embodiment, the nucleic acid encoding for a histone stem loop and a polyA sequence or a polyadenylation signal may code for a tumor antigen or fragment thereof such as the nucleic acid sequences described in International Patent Publication Nos. WO2013120500 and WO2013120627, the contents of both of which are incorporated herein by reference in their entirety. In another embodiment, the nucleic acid encoding for a histone stem loop and a polyA sequence or a polyadenylation signal may code for a allergenic antigen or an autoimmune self-antigen such as the nucleic acid sequences described in International Patent Publication Nos. WO2013120498 and WO2013120626, the contents of both of which are incorporated herein by reference in their entirety.

Terminal Architecture Alterations: 3′ UTR and Triple Helices

In one embodiment, nucleic acids of the present invention may include a triple helix on the 3′ end of the alternative nucleic acid, enhanced alternative RNA or ribonucleic acid. The 3′ end of the nucleic acids of the present invention may include a triple helix alone or in combination with a Poly-A tail.

In one embodiment, the nucleic acid of the present invention may comprise at least a first and a second U-rich region, a conserved stem loop region between the first and second region and an A-rich region. The first and second U-rich region and the A-rich region may associate to form a triple helix on the 3′ end of the nucleic acid. This triple helix may stabilize the nucleic acid, enhance the translational efficiency of the nucleic acid and/or protect the 3′ end from degradation. Exemplary triple helices include, but are not limited to, the triple helix sequence of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), MEN-β and polyadenylated nuclear (PAN) RNA (See Wilusz et al., Genes & Development 2012 26:2392-2407; herein incorporated by reference in its entirety). In one embodiment, the 3′ end of the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the present invention comprises a first U-rich region comprising TTTTTCTTTT (SEQ ID NO: 11), a second U-rich region comprising TTTTGCTTTTT (SEQ ID NO: 12) or TTTTGCTTTT (SEQ ID NO: 13), an A-rich region comprising AAAAAGCAAAA (SEQ ID NO: 14). In another embodiment, the 3′ end of the nucleic acids of the present invention comprises a triple helix formation structure comprising a first U-rich region, a conserved region, a second U-rich region and an A-rich region.

In one embodiment, the triple helix may be formed from the cleavage of a MALAT1 sequence prior to the cloverleaf structure. While not meaning to be bound by theory, MALAT1 is a long non-coding RNA which, when cleaved, forms a triple helix and a tRNA-like cloverleaf structure. The MALAT1 transcript then localizes to nuclear speckles and the tRNA-like cloverleaf localizes to the cytoplasm (Wilusz et al. Cell 2008 135(5): 919-932; incorporated herein by reference in its entirety).

As a non-limiting example, the terminal end of the nucleic acid of the present invention comprising the MALAT1 sequence can then form a triple helix structure, after RNaseP cleavage from the cloverleaf structure, which stabilizes the nucleic acid (Peart et al. Non-mRNA 3′ end formation: how the other half lives; WIREs RNA 2013; incorporated herein by reference in its entirety).

In one embodiment, the nucleic acids or mRNA described herein comprise a MALAT1 sequence. In another embodiment, the nucleic acids or mRNA may be polyadenylated. In yet another embodiment, the nucleic acids or mRNA is not polyadenylated but has an increased resistance to degradation compared to unaltered nucleic acids or mRNA.

In one embodiment, the nucleic acids of the present invention may comprise a MALAT1 sequence in the second flanking region (e.g., the 3′ UTR). As a non-limiting example, the MALAT1 sequence may be human or mouse.

In another embodiment, the cloverleaf structure of the MALAT1 sequence may also undergo processing by RNaseZ and CCA adding enzyme to form a tRNA-like structure called mascRNA (MALAT1-associated small cytoplasmic RNA). As a non-limiting example, the mascRNA may encode a protein or a fragment thereof and/or may comprise a microRNA sequence. The mascRNA may comprise at least one chemical alteration described herein.

Terminal Architecture Alterations: Poly-A tails

During RNA processing, a long chain of adenosine nucleotides (poly-A tail) is normally added to a messenger RNA (mRNA) molecules to increase the stability of the molecule. Immediately after transcription, the 3′ end of the transcript is cleaved to free a 3′ hydroxyl. Then poly-A polymerase adds a chain of adenosine nucleotides to the RNA. The process, called polyadenylation, adds a poly-A tail that is between 100 and 250 residues long.

Methods for the stabilization of RNA by incorporation of chain-terminating nucleosides at the 3′-terminus include those described in International Patent Publication No. WO2013103659, incorporated herein in its entirety.

Unique poly-A tail lengths may provide certain advantages to the alternative RNAs of the present invention.

Generally, the length of a poly-A tail of the present invention is greater than 30 nucleotides in length. In another embodiment, the poly-A tail is greater than 35 nucleotides in length. In another embodiment, the length is at least 40 nucleotides. In another embodiment, the length is at least 45 nucleotides. In another embodiment, the length is at least 55 nucleotides. In another embodiment, the length is at least 60 nucleotides. In another embodiment, the length is at least 60 nucleotides. In another embodiment, the length is at least 80 nucleotides. In another embodiment, the length is at least 90 nucleotides. In another embodiment, the length is at least 100 nucleotides. In another embodiment, the length is at least 120 nucleotides. In another embodiment, the length is at least 140 nucleotides. In another embodiment, the length is at least 160 nucleotides. In another embodiment, the length is at least 180 nucleotides. In another embodiment, the length is at least 200 nucleotides. In another embodiment, the length is at least 250 nucleotides. In another embodiment, the length is at least 300 nucleotides. In another embodiment, the length is at least 350 nucleotides. In another embodiment, the length is at least 400 nucleotides. In another embodiment, the length is at least 450 nucleotides. In another embodiment, the length is at least 500 nucleotides. In another embodiment, the length is at least 600 nucleotides. In another embodiment, the length is at least 700 nucleotides. In another embodiment, the length is at least 800 nucleotides. In another embodiment, the length is at least 900 nucleotides. In another embodiment, the length is at least 1000 nucleotides. In another embodiment, the length is at least 1100 nucleotides. In another embodiment, the length is at least 1200 nucleotides. In another embodiment, the length is at least 1300 nucleotides. In another embodiment, the length is at least 1400 nucleotides. In another embodiment, the length is at least 1500 nucleotides. In another embodiment, the length is at least 1600 nucleotides. In another embodiment, the length is at least 1700 nucleotides. In another embodiment, the length is at least 1800 nucleotides. In another embodiment, the length is at least 1900 nucleotides. In another embodiment, the length is at least 2000 nucleotides. In another embodiment, the length is at least 2500 nucleotides. In another embodiment, the length is at least 3000 nucleotides.

In some embodiments, the nucleic acid or mRNA includes from about 30 to about 3,000 nucleotides (e.g., from 30 to 50, from 30 to 100, from 30 to 250, from 30 to 500, from 30 to 750, from 30 to 1,000, from 30 to 1,500, from 30 to 2,000, from 30 to 2,500, from 50 to 100, from 50 to 250, from 50 to 500, from 50 to 750, from 50 to 1,000, from 50 to 1,500, from 50 to 2,000, from 50 to 2,500, from 50 to 3,000, from 100 to 500, from 100 to 750, from 100 to 1,000, from 100 to 1,500, from 100 to 2,000, from 100 to 2,500, from 100 to 3,000, from 500 to 750, from 500 to 1,000, from 500 to 1,500, from 500 to 2,000, from 500 to 2,500, from 500 to 3,000, from 1,000 to 1,500, from 1,000 to 2,000, from 1,000 to 2,500, from 1,000 to 3,000, from 1,500 to 2,000, from 1,500 to 2,500, from 1,500 to 3,000, from 2,000 to 3,000, from 2,000 to 2,500, and from 2,500 to 3,000).

In one embodiment, the poly-A tail may be 80 nucleotides, 120 nucleotides, 160 nucleotides in length on an alternative RNA molecule described herein.

In another embodiment, the poly-A tail may be 20, 40, 80, 100, 120, 140 or 160 nucleotides in length on an alternative RNA molecule described herein.

In one embodiment, the poly-A tail is designed relative to the length of the overall alternative RNA molecule. This design may be based on the length of the coding region of the alternative RNA, the length of a particular feature or region of the alternative RNA (such as the mRNA), or based on the length of the ultimate product expressed from the alternative RNA. When relative to any additional feature of the alternative RNA (e.g., other than the mRNA portion which includes the poly-A tail) the poly-A tail may be 10, 20, 30, 40, 50, 60, 70, 80, 90 or 100% greater in length than the additional feature. The poly-A tail may also be designed as a fraction of the alternative RNA to which it belongs. In this context, the poly-A tail may be 10, 20, 30, 40, 50, 60, 70, 80, or 90% or more of the total length of the construct or the total length of the construct minus the poly-A tail.

In one embodiment, engineered binding sites and/or the conjugation of nucleic acids or mRNA for Poly-A binding protein (PABP) may be used to enhance expression. The engineered binding sites may be sensor sequences which can operate as binding sites for ligands of the local microenvironment of the nucleic acids and/or mRNA. As a non-limiting example, the nucleic acids and/or mRNA may comprise at least one engineered binding site to alter the binding affinity of PABP and analogs thereof. The incorporation of at least one engineered binding site may increase the binding affinity of the PABP and analogs thereof.

Additionally, multiple distinct nucleic acids or mRNA may be linked together to the PABP through the 3′-end using alternative nucleotides at the 3′-terminus of the poly-A tail. Transfection experiments can be conducted in relevant cell lines at and protein production can be assayed by ELISA at 12 hr, 24 hr, 48 hr, 72 hr and day 7 post-transfection. As a non-limiting example, the transfection experiments may be used to evaluate the effect on PABP or analogs thereof binding affinity as a result of the addition of at least one engineered binding site.

In one embodiment, a polyA tail may be used to modulate translation initiation. While not wishing to be bound by theory, the polyA til recruits PABP which in turn can interact with translation initiation complex and thus may be essential for protein synthesis.

In another embodiment, a polyA tail may also be used in the present invention to protect against 3′-5′ exonuclease digestion.

In one embodiment, the nucleic acids or mRNA of the present invention are designed to include a polyA-G Quartet. The G-quartet is a cyclic hydrogen bonded array of four guanosine nucleotides that can be formed by G-rich sequences in both DNA and RNA. In this embodiment, the G-quartet is incorporated at the end of the poly-A tail. The resultant nucleic acid or mRNA may be assayed for stability, protein production and other parameters including half-life at various time points. It has been discovered that the polyA-G quartet results in protein production equivalent to at least 75% of that seen using a poly-A tail of 120 nucleotides alone.

In one embodiment, the nucleic acids or mRNA of the present invention may comprise a polyA tail and may be stabilized by the addition of a chain terminating nucleoside. The nucleic acids and/or mRNA with a polyA tail may further comprise a 5′ cap structure.

In another embodiment, the nucleic acids or mRNA of the present invention may comprise a polyA-G Quartet. The nucleic acids and/or mRNA with a polyA-G Quartet may further comprise a 5′ cap structure.

In one embodiment, the chain terminating nucleoside which may be used to stabilize the nucleic acid or mRNA comprising a polyA tail or polyA-G Quartet may be, but is not limited to, those described in International Patent Publication No. WO2013103659, incorporated herein by reference in its entirety. In another embodiment, the chain terminating nucleosides which may be used with the present invention includes, but is not limited to, 3′-deoxyadenosine (cordycepin), 3′-deoxyuridine, 3′-deoxycytidine, 3′-deoxyguanosine, 3′-deoxythymidine, 2′,3′-dideoxynucleosides, such as 2′,3′-dideoxyadenosine, 2′,3′-dideoxyuridine, 2′,3′-dideoxycytidine, 2′,3′-dideoxyguanosine, 2′,3′-dideoxythymidine, a 2′-deoxynucleoside, or a —O— methylnucleoside.

In another embodiment, the nucleic acid such as, but not limited to mRNA, which comprise a polyA tail or a polyA-G Quartet may be stabilized by an alteration to the 3′ region of the nucleic acid that can prevent and/or inhibit the addition of oligio(U) (see e.g., International Patent Publication No. WO2013103659, incorporated herein by reference in its entirety).

In yet another embodiment, the nucleic acid such as, but not limited to mRNA, which comprise a polyA tail or a polyA-G Quartet may be stabilized by the addition of an oligonucleotide that terminates in a 3′-deoxynucleoside, 2′,3′-dideoxynucleoside 3′-O-methylnucleosides, 3′-O-ethylnucleosides, 3′-arabinosides, and other alternative nucleosides known in the art and/or described herein.

5′ UTR, 3′ UTR and Translation Enhancer Elements (TEES)

In one embodiment, the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA may include at least one translational enhancer polynucleotide, translation enhancer element, translational enhancer elements (collectively referred to as “TEE”s). As a non-limiting example, the TEE may be located between the transcription promoter and the start codon. The polynucleotides, primary constructs, alternative nucleic acids and/or mmRNA with at least one TEE in the 5′ UTR may include a cap at the 5′ UTR. Further, at least one TEE may be located in the 5′ UTR of polynucleotides, primary constructs, alternative nucleic acids and/or mRNA undergoing cap-dependent or cap-independent translation.

The term “translational enhancer element” or “translation enhancer element” (herein collectively referred to as “TEE”) refers to sequences that increase the amount of polypeptide or protein produced from an mRNA.

In one aspect, TEEs are conserved elements in the UTR which can promote translational activity of a nucleic acid such as, but not limited to, cap-dependent or cap-independent translation. The conservation of these sequences has been previously shown by Panek et al (Nucleic Acids Research, 2013, 1-10; incorporated herein by reference in its entirety) across 14 species including humans.

In one non-limiting example, the TEEs known may be in the 5′-leader of the Gtx homeodomain protein (Chappell et al., Proc. Natl. Acad. Sci. USA 101:9590-9594, 2004, incorporated herein by reference in its entirety).

In another non-limiting example, TEEs are disclosed as SEQ ID NOs: 1-35 in US Patent Publication No. 20090226470, SEQ ID NOs: 1-35 in US Patent Publication No. 20130177581, SEQ ID NOs: 1-35 in International Patent Publication No. WO2009075886, SEQ ID NOs: 1-5, and 7-645 in International Patent Publication No. WO2012009644, SEQ ID NO: 1 in International Patent Publication No. WO1999024595, SEQ ID NO: 1 in U.S. Pat. No. 6,310,197, and SEQ ID NO: 1 in U.S. Pat. No. 6,849,405, each of which is incorporated herein by reference in its entirety.

In yet another non-limiting example, the TEE may be an internal ribosome entry site (IRES), HCV-IRES or an IRES element such as, but not limited to, those described in U.S. Pat. No. 7,468,275, US Patent Publication Nos. 20070048776 and 20110124100 and International Patent Publication Nos. WO2007025008 and WO2001055369, each of which is incorporated herein by reference in its entirety. The IRES elements may include, but are not limited to, the Gtx sequences (e.g., Gtx9-nt, Gtx8-nt, Gtx7-nt) described by Chappell et al. (Proc. Natl. Acad. Sci. USA 101:9590-9594, 2004) and Zhou et al. (PNAS 102:6273-6278, 2005) and in US Patent Publication Nos. 20070048776 and 20110124100 and International Patent Publication No. WO2007025008, each of which is incorporated herein by reference in its entirety.

“Translational enhancer polynucleotides” or “translation enhancer polynucleotide sequences” are polynucleotides which include one or more of the specific TEE exemplified herein and/or disclosed in the art (see e.g., U.S. Pat. Nos. 6,310,197, 6,849,405, 7,456,273, 7,183,395, US Patent Publication Nos. 20090226470, 20070048776, 20110124100, 20090093049, 20130177581, International Patent Publication Nos. WO2009075886, WO2007025008, WO2012009644, WO2001055371 WO1999024595, and European Patent Publication Nos. 2610341 A1 and 2610340A1; each of which is incorporated herein by reference in its entirety) or their variants, homologs or functional derivatives. One or multiple copies of a specific TEE can be present in the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA. The TEEs in the translational enhancer polynucleotides can be organized in one or more sequence segments. A sequence segment can harbor one or more of the specific TEEs exemplified herein, with each TEE being present in one or more copies. When multiple sequence segments are present in a translational enhancer polynucleotide, they can be homogenous or heterogeneous. Thus, the multiple sequence segments in a translational enhancer polynucleotide can harbor identical or different types of the specific TEEs exemplified herein, identical or different number of copies of each of the specific TEEs, and/or identical or different organization of the TEEs within each sequence segment.

In one embodiment, the polynucleotides, primary constructs, alternative nucleic acids and/or mmRNA may include at least one TEE that is described in International Patent Publication Nos. WO1999024595, WO2012009644, WO2009075886, WO2007025008, WO1999024595, European Patent Publication Nos. 2610341A1 and 2610340A1, U.S. Pat. Nos. 6,310,197, 6,849,405, 7,456,273, 7,183,395, US Patent Publication Nos. 20090226470, 20110124100, 20070048776, 20090093049, and 20130177581 each of which is incorporated herein by reference in its entirety. The TEE may be located in the 5′UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA.

In another embodiment, the polynucleotides, primary constructs, alternative nucleic acids and/or mmRNA may include at least one TEE that has at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95% or at least 99% identity with the TEEs described in US Patent Publication Nos. 20090226470, 20070048776, 20130177581 and 20110124100, International Patent Publication Nos. WO1999024595, WO2012009644, WO2009075886 and WO2007025008, European Patent Publication Nos. 2610341 A1 and 2610340A1, U.S. Pat. Nos. 6,310,197, 6,849,405, 7,456,273, 7,183,395, each of which is incorporated herein by reference in its entirety.

In one embodiment, the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA may include at least 1, at least 2, at least 3, at least 4, at least 5, at least 6, at least 7, at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 16, at least 17, at least 18 at least 19, at least 20, at least 21, at least 22, at least 23, at least 24, at least 25, at least 30, at least 35, at least 40, at least 45, at least 50, at least 55 or more than 60 TEE sequences. The TEE sequences in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may be the same or different TEE sequences. The TEE sequences may be in a pattern such as ABABAB or AABBAABBAABB or ABCABCABC or variants thereof repeated once, twice, or more than three times. In these patterns, each letter, A, B, or C represent a different TEE sequence at the nucleotide level.

In one embodiment, the 5′ UTR may include a spacer to separate two TEE sequences. As a non-limiting example, the spacer may be a 15 nucleotide spacer and/or other spacers known in the art. As another non-limiting example, the 5′ UTR may include a TEE sequence-spacer module repeated at least once, at least twice, at least 3 times, at least 4 times, at least 5 times, at least 6 times, at least 7 times, at least 8 times and at least 9 times or more than 9 times in the 5′ UTR.

In another embodiment, the spacer separating two TEE sequences may include other sequences known in the art which may regulate the translation of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention such as, but not limited to, miR sequences described herein (e.g., miR binding sites and miR seeds). As a non-limiting example, each spacer used to separate two TEE sequences may include a different miR sequence or component of a miR sequence (e.g., miR seed sequence).

In one embodiment, the TEE in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may include at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 99% or more than 99% of the TEE sequences disclosed in US Patent Publication Nos. 20090226470, 20070048776, 20130177581 and 20110124100, International Patent Publication Nos. WO1999024595, WO2012009644, WO2009075886 and WO2007025008, European Patent Publication Nos. 2610341 A1 and 2610340A1, U.S. Pat. Nos. 6,310,197, 6,849,405, 7,456,273, and 7,183,395 each of which is incorporated herein by reference in its entirety. In another embodiment, the TEE in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may include a 5-30 nucleotide fragment, a 5-25 nucleotide fragment, a 5-20 nucleotide fragment, a 5-15 nucleotide fragment, a 5-10 nucleotide fragment of the TEE sequences disclosed in US Patent Publication Nos. 20090226470, 20070048776, 20130177581 and 20110124100, International Patent Publication Nos. WO1999024595, WO2012009644, WO2009075886 and WO2007025008, European Patent Publication Nos. 2610341A1 and 2610340A1, U.S. Pat. Nos. 6,310,197, 6,849,405, 7,456,273, and 7,183,395; each of which is incorporated herein by reference in its entirety.

In one embodiment, the TEE in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mmRNA of the present invention may include at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 35%, at least 40%, at least 45%, at least 50%, at least 55%, at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 99% or more than 99% of the TEE sequences disclosed in Chappell et al. (Proc. Natl. Acad. Sci. USA 101:9590-9594, 2004) and Zhou et al. (PNAS 102:6273-6278, 2005), in Supplemental Table 1 and in Supplemental Table 2 disclosed by Wellensiek et al (Genome-wide profiling of human cap-independent translation-enhancing elements, Nature Methods, 2013; DOI:10.1038/NMETH.2522); each of which is herein incorporated by reference in its entirety. In another embodiment, the TEE in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may include a 5-30 nucleotide fragment, a 5-25 nucleotide fragment, a 5-20 nucleotide fragment, a 5-15 nucleotide fragment, a 5-10 nucleotide fragment of the TEE sequences disclosed in Chappell et al. (Proc. Natl. Acad. Sci. USA 101:9590-9594, 2004) and Zhou et al. (PNAS 102:6273-6278, 2005), in Supplemental Table 1 and in Supplemental Table 2 disclosed by Wellensiek et al (Genome-wide profiling of human cap-independent translation-enhancing elements, Nature Methods, 2013; DOI:10.1038/NMETH.2522); each of which is incorporated herein by reference in its entirety.

In one embodiment, the TEE used in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention is an IRES sequence such as, but not limited to, those described in U.S. Pat. No. 7,468,275 and International Patent Publication No. WO2001055369, each of which is incorporated herein by reference in its entirety.

In one embodiment, the TEEs used in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may be identified by the methods described in US Patent Publication No. 20070048776 and 20110124100 and International Patent Publication Nos. WO2007025008 and WO2012009644, each of which is incorporated herein by reference in its entirety.

In another embodiment, the TEEs used in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may be a transcription regulatory element described in U.S. Pat. Nos. 7,456,273 and 7,183,395, US Patent Publication No. 20090093049, and International Publication No. WO2001055371, each of which is incorporated herein by reference in its entirety. The transcription regulatory elements may be identified by methods known in the art, such as, but not limited to, the methods described in U.S. Pat. Nos. 7,456,273 and 7,183,395, US Patent Publication No. 20090093049, and International Publication No. WO2001055371, each of which is incorporated herein by reference in its entirety.

In yet another embodiment, the TEE used in the 5′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention is an oligonucleotide or portion thereof as described in U.S. Pat. Nos. 7,456,273 and 7,183,395, US Patent Publication No. 20090093049, and International Publication No. WO2001055371, each of which is incorporated herein by reference in its entirety.

The 5′ UTR comprising at least one TEE described herein may be incorporated in a monocistronic sequence such as, but not limited to, a vector system or a nucleic acid vector. As a non-limiting example, the vector systems and nucleic acid vectors may include those described in U.S. Pat. Nos. 7,456,273 and 7,183,395, US Patent Publication Nos. 20070048776, 20090093049 and 20110124100 and International Patent Publication Nos. WO2007025008 and WO2001055371, each of which is incorporated herein by reference in its entirety.

In one embodiment, the TEEs described herein may be located in the 5′ UTR and/or the 3′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA. The TEEs located in the 3′ UTR may be the same and/or different than the TEEs located in and/or described for incorporation in the 5′ UTR.

In one embodiment, the 3′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA may include at least 1, at least 2, at least 3, at least 4, at least 5, at least 6, at least 7, at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 16, at least 17, at least 18 at least 19, at least 20, at least 21, at least 22, at least 23, at least 24, at least 25, at least 30, at least 35, at least 40, at least 45, at least 50, at least 55 or more than 60 TEE sequences. The TEE sequences in the 3′ UTR of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention may be the same or different TEE sequences. The TEE sequences may be in a pattern such as ABABAB or AABBAABBAABB or ABCABCABC or variants thereof repeated once, twice, or more than three times. In these patterns, each letter, A, B, or C represent a different TEE sequence at the nucleotide level.

In one embodiment, the 3′ UTR may include a spacer to separate two TEE sequences. As a non-limiting example, the spacer may be a 15 nucleotide spacer and/or other spacers known in the art. As another non-limiting example, the 3′ UTR may include a TEE sequence-spacer module repeated at least once, at least twice, at least 3 times, at least 4 times, at least 5 times, at least 6 times, at least 7 times, at least 8 times and at least 9 times or more than 9 times in the 3′ UTR.

In another embodiment, the spacer separating two TEE sequences may include other sequences known in the art which may regulate the translation of the polynucleotides, primary constructs, alternative nucleic acids and/or mRNA of the present invention such as, but not limited to, miR sequences described herein (e.g., miR binding sites and miR seeds). As a non-limiting example, each spacer used to separate two TEE sequences may include a different miR sequence or component of a miR sequence (e.g., miR seed sequence).

In one embodiment, the incorporation of a miR sequence and/or a TEE sequence changes the shape of the stem loop region which may increase and/or decrease translation. (see e.g, Kedde et al. A Pumilio-induced RNA structure switch in p27-3′UTR controls miR-221 and miR-22 accessibility. Nature Cell Biology. 2010, herein incorporated by reference in its entirety).

Heterologous 5′ UTRs

A 5′ UTR may be provided as a flanking region to the alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention. 5′ UTR may be homologous or heterologous to the coding region found in the alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention. Multiple 5′ UTRs may be included in the flanking region and may be the same or of different sequences. Any portion of the flanking regions, including none, may be codon optimized and any may independently contain one or more different structural or chemical alterations, before and/or after codon optimization.

Shown in Lengthy Table 21 in U.S. Provisional Application No. 61/775,509, and in Lengthy Table 21 and in Table 22 in U.S. Provisional Application No. 61/829,372, the contents of each of which are incorporated herein by reference in their entirety, is a listing of the start and stop site of the alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention. In Table 21 each 5′ UTR (5′ UTR-005 to 5′ UTR 68511) is identified by its start and stop site relative to its native or wild type (homologous) transcript (ENST; the identifier used in the ENSEMBL database).

To alter one or more properties of the polynucleotides, primary constructs or mRNA of the invention, 5′ UTRs which are heterologous to the coding region of the alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention are engineered into compounds of the invention. The alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids are then administered to cells, tissue or organisms and outcomes such as protein level, localization and/or half-life are measured to evaluate the beneficial effects the heterologous 5′ UTR may have on the alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention. Variants of the 5′ UTRs may be utilized wherein one or more nucleotides are added or removed to the termini, including A, T, C or G. 5′ UTRs may also be codon-optimized or altered in any manner described herein.

Incorporating microRNA Binding Sites

In one embodiment, alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention would not only encode a polypeptide but also a sensor sequence. Sensor sequences include, for example, microRNA binding sites, transcription factor binding sites, structured mRNA sequences and/or motifs, artificial binding sites engineered to act as pseudo-receptors for endogenous nucleic acid binding molecules. Non-limiting examples, of polynucleotides comprising at least one sensor sequence are described in co-pending and co-owned U.S. Provisional Patent Application No. 61/753,661, filed Jan. 17, 2013, U.S. Provisional Patent Application No. 61/754,159, filed Jan. 18, 2013, U.S. Provisional Patent Application No. 61/781,097, filed Mar. 14, 2013, U.S. Provisional Patent Application No. 61/829,334, filed May 31, 2013, U.S. Provisional Patent Application No. 61/839,893, filed Jun. 27, 2013, U.S. Provisional Patent Application No. 61/842,733, filed Jul. 3, 2013, and U.S. Provisional Patent Application No. 61/857,304, filed Jul. 23, 2013, the contents of each of which are incorporated herein by reference in their entirety.

In one embodiment, microRNA (miRNA) profiling of the target cells or tissues is conducted to determine the presence or absence of miRNA in the cells or tissues.

microRNAs (or miRNA) are 19-25 nucleotide long noncoding RNAs that bind to the 3′UTR of nucleic acid molecules and down-regulate gene expression either by reducing nucleic acid molecule stability or by inhibiting translation. The alternative nucleic acids (mRNA), enhanced alternative RNA or ribonucleic acids of the invention may comprise one or more microRNA target sequences, microRNA sequences, or microRNA seeds. Such sequences may correspond to any known microRNA such as those taught in US Patent Publication Nos. 2005/0261218 and 2005/0059005, the contents of which are incorporated herein by reference in their entirety.

A microRNA sequence comprises a “seed” region, i.e., a sequence in the region of positions 2-8 of the mature microRNA, which sequence has perfect Watson-Crick complementarity to the miRNA target sequence. A microRNA seed may comprise positions 2-8 or 2-7 of the mature microRNA. In some embodiments, a microRNA seed may comprise 7 nucleotides (e.g., nucleotides 2-8 of the mature microRNA), wherein the seed-complementary site in the corresponding miRNA target is flanked by an adenosine (A) opposed to microRNA position 1. In some embodiments, a microRNA seed may comprise 6 nucleotides (e.g., nucleotides 2-7 of the mature microRNA), wherein the seed-complementary site in the corresponding miRNA target is flanked by an adenosine (A) opposed to microRNA position 1. See for example, Grimson A, Farh K K, Johnston W K, Garrett-Engele P, Lim LP, Bartel D P; Mol Cell. 2007 Jul. 6; 27(1):91-105. The bases of the microRNA seed have complete complementarity with the target sequence. By engineering microRNA target sequences into the 3′UTR of nucleic acids or mRNA of the invention one can target the molecule for degradation or reduced translation, provided the microRNA in question is available. This process will reduce the hazard of off target effects upon nucleic acid molecule delivery. Identification of microRNA, microRNA target regions, and their expression patterns and role in biology have been reported (Bonauer et al., Curr Drug Targets 2010 11:943-949; Anand and Cheresh Curr Opin Hematol 2011 18:171-176; Contreras and Rao Leukemia 2012 26:404-413 (2011 Dec. 20. doi: 10.1038/Ieu.2011.356); Bartel Cell 2009 136:215-233; Landgraf et al, Cell, 2007 129:1401-1414; Gentner and Naldini, Tissue Antigens. 2012 80:393-403 and all references therein; each of which is incorporated herein by reference in its entirety).

For example, if the mRNA is not intended to be delivered to the liver but ends up there, then miR-122, a microRNA abundant in liver, can inhibit the expression of the gene of interest if one or multiple target sites of miR-122 are engineered into the 3′UTR of the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids. Introduction of one or multiple binding sites for different microRNA can be engineered to further decrease the longevity, stability, and protein translation of an alternative nucleic acids, enhanced alternative RNA or ribonucleic acids. As used herein, the term “microRNA site” refers to a microRNA target site or a microRNA recognition site, or any nucleotide sequence to which a microRNA binds or associates. It should be understood that “binding” may follow traditional Watson-Crick hybridization rules or may reflect any stable association of the microRNA with the target sequence at or adjacent to the microRNA site.

Conversely, for the purposes of the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the present invention, microRNA binding sites can be engineered out of (i.e. removed from) sequences in which they naturally occur in order to increase protein expression in specific tissues. For example, miR-122 binding sites may be removed to improve protein expression in the liver.

In one embodiment, the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the present invention may include at least one miRNA-binding site in the 3′ UTR in order to direct cytotoxic or cytoprotective mRNA therapeutics to specific cells such as, but not limited to, normal and/or cancerous cells (e.g., HEP3B or SNU449).

In another embodiment, the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the present invention may include three miRNA-binding sites in the 3′ UTR in order to direct cytotoxic or cytoprotective mRNA therapeutics to specific cells such as, but not limited to, normal and/or cancerous cells (e.g., HEP3B or SNU449).

Regulation of expression in multiple tissues can be accomplished through introduction or removal or one or several microRNA binding sites. The decision of removal or insertion of microRNA binding sites, or any combination, is dependent on microRNA expression patterns and their profilings in diseases.

Examples of tissues where microRNA are known to regulate mRNA, and thereby protein expression, include, but are not limited to, liver (miR-122), muscle (miR-133, miR-206, miR-208), endothelial cells (miR-17-92, miR-126), myeloid cells (miR-142-3p, miR-142-5p, miR-16, miR-21, miR-223, miR-24, miR-27), adipose tissue (let-7, miR-30c), heart (miR-1d, miR-149), kidney (miR-192, miR-194, miR-204), and lung epithelial cells (let-7, miR-133, miR-126).

Specifically, microRNAs are known to be differentially expressed in immune cells (also called hematopoietic cells), such as antigen presenting cells (APCs) (e.g. dendritic cells and macrophages), macrophages, monocytes, B lymphocytes, T lymphocytes, granuocytes, natural killer cells. Immune cell specific microRNAs are involved in immunogenicity, autoimmunity, the immune-response to infection, inflammation, as well as unwanted immune response after gene therapy and tissue/organ transplantation.

Immune cells specific microRNAs also regulate many aspects of development, proliferation, differentiation and apoptosis of hematopoietic cells (immune cells). For example, miR-142 and miR-146 are exclusively expressed in the immune cells, particularly abundant in myeloid dendritic cells. It was demonstrated in the art that the immune response to exogenous nucleic acid molecules was shut-off by adding miR-142 binding sites to the 3′ UTR of the delivered gene construct, enabling more stable gene transfer in tissues and cells. miR-142 efficiently degrades the exogenous mRNA in antigen presenting cells and suppresses cytotoxic elimination of transduced cells (Annoni A et al., blood, 2009, 114, 5152-5161; Brown B D, et al., Nat med. 2006, 12(5), 585-591; Brown B D, et al., blood, 2007, 110(13): 4144-4152, each of which is incorporated herein by reference in its entirety).

An antigen-mediated immune response can refer to an immune response triggered by foreign antigens, which, when entering an organism, are processed by the antigen presenting cells and displayed on the surface of the antigen presenting cells. T cells can recognize the presented antigen and induce a cytotoxic elimination of cells that express the antigen.

Introducing the miR-142 binding site into the 3′ UTR of a polypeptide of the present invention can selectively repress the gene expression in the antigen presenting cells through miR-142 mediated mRNA degradation, limiting antigen presentation in APCs (e.g. dendritic cells) and thereby preventing antigen-mediated immune response after the delivery of the polynucleotides. The polynucleotides are therefore stably expressed in target tissues or cells without triggering cytotoxic elimination.

In one embodiment, microRNAs binding sites that are known to be expressed in immune cells, in particular, the antigen presenting cells, can be engineered into the polynucleotide to suppress the expression of the sensor-signal polynucleotide in APCs through microRNA mediated RNA degradation, subduing the antigen-mediated immune response, while the expression of the polynucleotide is maintained in non-immune cells where the immune cell specific microRNAs are not expressed. For example, to prevent the immunogenic reaction caused by a liver specific protein expression, the miR-122 binding site can be removed and the miR-142 (and/or mirR-146) binding sites can be engineered into the 3-UTR of the polynucleotide.

To further drive the selective degradation and suppression of mRNA in APCs and macrophage, the polynucleotide may include another negative regulatory element in the 3-UTR, either alone or in combination with mir-142 and/or mir-146 binding sites. As a non-limiting example, one regulatory element is the Constitutive Decay Elements (CDEs).

Immune cells specific microRNAs include, but are not limited to, hsa-let-7α-2-3p, hsa-let-7α-3p, hsa-7α-5p, hsa-let-7c, hsa-let-7e-3p, hsa-let-7e-5p, hsa-let-7g-3p, hsa-let-7g-5p, hsa-let-7i-3p, hsa-let-7i-5p, miR-10α-3p, miR-10α-5p, miR-1184, hsa-let-7f-1-3p, hsa-let-7f-2-5p, hsa-let-7f-5p, miR-125b-1-3p, miR-125b-2-3p, miR-125b-5p, miR-1279, miR-130α-3p, miR-130α-5p, miR-132-3p, miR-132-5p, miR-142-3p, miR-142-5p, miR-143-3p, miR-143-5p, miR-146α-3p, miR-146α-5p, miR-146b-3p, miR-146b-5p, miR-147a, miR-147b, miR-148α-5p, miR-148α-3p, miR-150-3p, miR-150-5p, miR-151b, miR-155-3p, miR-155-5p, miR-15α-3p, miR-15α-5p, miR-15b-5p, miR-15b-3p, miR-16-1-3p, miR-16-2-3p, miR-16-5p, miR-17-5p, miR-181α-3p, miR-181α-5p, miR-181α-2-3p, miR-182-3p, miR-182-5p, miR-197-3p, miR-197-5p, miR-21-5p, miR-21-3p, miR-214-3p, miR-214-5p, miR-223-3p, miR-223-5p, miR-221-3p, miR-221-5p, miR-23b-3p, miR-23b-5p, miR-24-1-5p, miR-24-2-5p, miR-24-3p, miR-26α-1-3p, miR-26α-2-3p, miR-26α-5p, miR-26b-3p, miR-26b-5p, miR-27α-3p, miR-27α-5p, miR-27b-3p, miR-27b-5p, miR-28-3p, miR-28-5p, miR-2909, miR-29α-3p, miR-29α-5p, miR-29b-1-5p, miR-29b-2-5p, miR-29c-3p, miR-29c-5p, miR-30e-3p, miR-30e-5p, miR-331-5p, miR-339-3p, miR-339-5p, miR-345-3p, miR-345-5p, miR-346, miR-34α-3p, miR-34α-5p, miR-363-3p, miR-363-5p, miR-372, miR-377-3p, miR-377-5p, miR-493-3p, miR-493-5p, miR-542, miR-548b-5p, miR548c-5p, miR-548i, miR-548j, miR-548n, miR-574-3p, miR-598, miR-718, miR-935, miR-99α-3p, miR-99α-5p, miR-99b-3p and miR-99b-5p. Furthermore, novel miroRNAs are discovered in the immune cells in the art through micro-array hybridization and microtome analysis (Jima D D et al, Blood, 2010, 116:e118-e127; Vaz C et al., BMC Genomics, 2010, 11, 288, the content of each of which is incorporated herein by reference in its entirety.)

MicroRNAs that are known to be expressed in the liver include, but are not limited to, miR-107, miR-122-3p, miR-122-5p, miR-1228-3p, miR-1228-5p, miR-1249, miR-129-5p, miR-1303, miR-151a-3p, miR-151α-5p, miR-152, miR-194-3p, miR-194-5p, miR-199α-3p, miR-199α-5p, miR-199b-3p, miR-199b-5p, miR-296-5p, miR-557, miR-581, miR-939-3p, miR-939-5p. MicroRNA binding sites from any liver specific microRNA can be introduced to or removed from the polynucleotides to regulate the expression of the polynucleotides in the liver. Liver specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites in order to prevent immune reaction against protein expression in the liver.

MicroRNAs that are known to be expressed in the lung include, but are not limited to, let-7α-2-3p, let-7α-3p, let-7α-5p, miR-126-3p, miR-126-5p, miR-127-3p, miR-127-5p, miR-130α-3p, miR-130α-5p, miR-130b-3p, miR-130b-5p, miR-133a, miR-133b, miR-134, miR-18α-3p, miR-18α-5p, miR-18b-3p, miR-18b-5p, miR-24-1-5p, miR-24-2-5p, miR-24-3p, miR-296-3p, miR-296-5p, miR-32-3p, miR-337-3p, miR-337-5p, miR-381-3p, miR-381-5p. MicroRNA binding sites from any lung specific microRNA can be introduced to or removed from the polynucleotide to regulate the expression of the polynucleotide in the lung. Lung specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites in order to prevent an immune reaction against protein expression in the lung.

MicroRNAs that are known to be expressed in the heart include, but are not limited to, miR-1, miR-133a, miR-133b, miR-149-3p, miR-149-5p, miR-186-3p, miR-186-5p, miR-208a, miR-208b, miR-210, miR-296-3p, miR-320, miR-451a, miR-451 b, miR-499α-3p, miR-499α-5p, miR-499b-3p, miR-499b-5p, miR-744-3p, miR-744-5p, miR-92b-3p and miR-92b-5p. MicroRNA binding sites from any heart specific microRNA can be introduced to or removed from the polynucleotides to regulate the expression of the polynucleotides in the heart. Heart specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites to prevent an immune reaction against protein expression in the heart.

MicroRNAs that are known to be expressed in the nervous system include, but are not limited to, miR-124-5p, miR-125α-3p, miR-125α-5p, miR-125b-1-3p, miR-125b-2-3p, miR-125b-5p, miR-1271-3p, miR-1271-5p, miR-128, miR-132-5p, miR-135α-3p, miR-135α-5p, miR-135b-3p, miR-135b-5p, miR-137, miR-139-5p, miR-139-3p, miR-149-3p, miR-149-5p, miR-153, miR-181c-3p, miR-181c-5p, miR-183-3p, miR-183-5p, miR-190a, miR-190b, miR-212-3p, miR-212-5p, miR-219-1-3p, miR-219-2-3p, miR-23α-3p, miR-23α-5p, miR-30α-5p, miR-30b-3p, miR-30b-5p, miR-30c-1-3p, miR-30c-2-3p, miR-30c-5p, miR-30d-3p, miR-30d-5p, miR-329, miR-342-3p, miR-3665, miR-3666, miR-380-3p, miR-380-5p, miR-383, miR-410, miR-425-3p, miR-425-5p, miR-454-3p, miR-454-5p, miR-483, miR-510, miR-516α-3p, miR-548b-5p, miR-548c-5p, miR-571, miR-7-1-3p, miR-7-2-3p, miR-7-5p, miR-802, miR-922, miR-9-3p and miR-9-5p. MicroRNAs enriched in the nervous system further include those specifically expressed in neurons, including, but not limited to, miR-132-3p, miR-132-3p, miR-148b-3p, miR-148b-5p, miR-151α-3p, miR-151a-5p, miR-212-3p, miR-212-5p, miR-320b, miR-320e, miR-323α-3p, miR-323α-5p, miR-324-5p, miR-325, miR-326, miR-328, miR-922 and those specifically expressed in glial cells, including, but not limited to, miR-1250, miR-219-1-3p, miR-219-2-3p, miR-219-5p, miR-23α-3p, miR-23α-5p, miR-3065-3p, miR-3065-5p, miR-30e-3p, miR-30e-5p, miR-32-5p, miR-338-5p, miR-657. MicroRNA binding sites from any CNS specific microRNA can be introduced to or removed from the polynucleotides to regulate the expression of the polynucleotide in the nervous system. Nervous system specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites in order to prevent immune reaction against protein expression in the nervous system.

MicroRNAs that are known to be expressed in the pancreas include, but are not limited to, miR-105-3p, miR-105-5p, miR-184, miR-195-3p, miR-195-5p, miR-196α-3p, miR-196α-5p, miR-214-3p, miR-214-5p, miR-216α-3p, miR-216α-5p, miR-30α-3p, miR-33α-3p, miR-33α-5p, miR-375, miR-7-1-3p, miR-7-2-3p, miR-493-3p, miR-493-5p and miR-944. MicroRNA binding sites from any pancreas specific microRNA can be introduced to or removed from the polynucleotide to regulate the expression of the polynucleotide in the pancreas. Pancreas specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites in order to prevent an immune reaction against protein expression in the pancreas.

MicroRNAs that are known to be expressed in the kidney further include, but are not limited to, miR-122-3p, miR-145-5p, miR-17-5p, miR-192-3p, miR-192-5p, miR-194-3p, miR-194-5p, miR-20α-3p, miR-20α-5p, miR-204-3p, miR-204-5p, miR-210, miR-216α-3p, miR-216α-5p, miR-296-3p, miR-30α-3p, miR-30α-5p, miR-30b-3p, miR-30b-5p, miR-30c-1-3p, miR-30c-2-3p, miR30c-5p, miR-324-3p, miR-335-3p, miR-335-5p, miR-363-3p, miR-363-5p and miR-562. MicroRNA binding sites from any kidney specific microRNA can be introduced to or removed from the polynucleotide to regulate the expression of the polynucleotide in the kidney. Kidney specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites to prevent an immune reaction against protein expression in the kidney.

MicroRNAs that are known to be expressed in the muscle further include, but are not limited to, let-7g-3p, let-7g-5p, miR-1, miR-1286, miR-133a, miR-133b, miR-140-3p, miR-143-3p, miR-143-5p, miR-145-3p, miR-145-5p, miR-188-3p, miR-188-5p, miR-206, miR-208a, miR-208b, miR-25-3p and miR-25-5p. MicroRNA binding sites from any muscle specific microRNA can be introduced to or removed from the polynucleotide to regulate the expression of the polynucleotide in the muscle. Muscle specific microRNAs binding sites can be engineered alone or further in combination with immune cells (e.g. APCs) microRNA binding sites to prevent an immune reaction against protein expression in the muscle.

MicroRNAs are differentially expressed in different types of cells, such as endothelial cells, epithelial cells and adipocytes. For example, microRNAs that are expressed in endothelial cells include, but are not limited to, let-7b-3p, let-7b-5p, miR-100-3p, miR-100-5p, miR-101-3p, miR-101-5p, miR-126-3p, miR-126-5p, miR-1236-3p, miR-1236-5p, miR-130α-3p, miR-130α-5p, miR-17-5p, miR-17-3p, miR-18α-3p, miR-18α-5p, miR-19α-3p, miR-19α-5p, miR-19b-1-5p, miR-19b-2-5p, miR-19b-3p, miR-20α-3p, miR-20α-5p, miR-217, miR-210, miR-21-3p, miR-21-5p, miR-221-3p, miR-221-5p, miR-222-3p, miR-222-5p, miR-23α-3p, miR-23α-5p, miR-296-5p, miR-361-3p, miR-361-5p, miR-421, miR-424-3p, miR-424-5p, miR-513α-5p, miR-92α-1-5p, miR-92α-2-5p, miR-92α-3p, miR-92b-3p and miR-92b-5p. Many novel microRNAs are discovered in endothelial cells from deep-sequencing analysis (Voellenkle C et al., RNA, 2012, 18, 472-484, herein incorporated by reference in its entirety) microRNA binding sites from any endothelial cell specific microRNA can be introduced to or removed from the polynucleotide to modulate the expression of the polynucleotide in the endothelial cells in various conditions.

For further example, microRNAs that are expressed in epithelial cells include, but are not limited to, let-7b-3p, let-7b-5p, miR-1246, miR-200α-3p, miR-200α-5p, miR-200b-3p, miR-200b-5p, miR-200c-3p, miR-200c-5p, miR-338-3p, miR-429, miR-451a, miR-451b, miR-494, miR-802 and miR-34a, miR-34b-5p, miR-34c-5p, miR-449a, miR-449b-3p, miR-449b-5p specific in respiratory ciliated epithelial cells; let-7 family, miR-133a, miR-133b, miR-126 specific in lung epithelial cells; miR-382-3p, miR-382-5p specific in renal epithelial cells and miR-762 specific in corneal epithelial cells. MicroRNA binding sites from any epithelial cell specific MicroRNA can be introduced to or removed from the polynucleotide to modulate the expression of the polynucleotide in the epithelial cells in various conditions.

In addition, a large group of microRNAs are enriched in embryonic stem cells, controlling stem cell self-renewal as well as the development and/or differentiation of various cell lineages, such as neural cells, cardiac, hematopoietic cells, skin cells, osteogenic cells and muscle cells (Kuppusamy K T et al., Curr. Mol Med, 2013, 13(5), 757-764; Vidigal J A and Ventura A, Semin Cancer Biol. 2012, 22(5-6), 428-436; Goff L A et al., PLoS One, 2009, 4:e7192; Morin R D et al., Genome Res, 2008, 18, 610-621; Yoo J K et al., Stem Cells Dev. 2012, 21(11), 2049-2057, each of which is herein incorporated by reference in its entirety). MicroRNAs abundant in embryonic stem cells include, but are not limited to, let-7α-2-3p, let-α-3p, let-7α-5p, let7d-3p, let-7d-5p, miR-103α-2-3p, miR-103α-5p, miR-106b-3p, miR-106b-5p, miR-1246, miR-1275, miR-138-1-3p, miR-138-2-3p, miR-138-5p, miR-154-3p, miR-154-5p, miR-200c-3p, miR-200c-5p, miR-290, miR-301α-3p, miR-301α-5p, miR-302α-3p, miR-302α-5p, miR-302b-3p, miR-302b-5p, miR-302c-3p, miR-302c-5p, miR-302d-3p, miR-302d-5p, miR-302e, miR-367-3p, miR-367-5p, miR-369-3p, miR-369-5p, miR-370, miR-371, miR-373, miR-380-5p, miR-423-3p, miR-423-5p, miR-486-5p, miR-520c-3p, miR-548e, miR-548f, miR-548g-3p, miR-548g-5p, miR-548i, miR-548k, miR-5481, miR-548m, miR-548n, miR-548o-3p, miR-548o-5p, miR-548p, miR-664α-3p, miR-664α-5p, miR-664b-3p, miR-664b-5p, miR-766-3p, miR-766-5p, miR-885-3p, miR-885-5p, miR-93-3p, miR-93-5p, miR-941, miR-96-3p, miR-96-5p, miR-99b-3p and miR-99b-5p. Many predicted novel microRNAs are discovered by deep sequencing in human embryonic stem cells (Morin R D et al., Genome Res, 2008, 18, 610-621; Goff L A et al., PLoS One, 2009, 4:e7192; Bar M et al., Stem cells, 2008, 26, 2496-2505, the content of each of which is incorporated herein by references in its entirety).

In one embodiment, the binding sites of embryonic stem cell specific microRNAs can be included in or removed from the 3-UTR of the polynucleotide to modulate the development and/or differentiation of embryonic stem cells, to inhibit the senescence of stem cells in a degenerative condition (e.g. degenerative diseases), or to stimulate the senescence and apoptosis of stem cells in a disease condition (e.g. cancer stem cells).

Many microRNA expression studies are conducted in the art to profile the differential expression of microRNAs in various cancer cells/tissues and other diseases. Some microRNAs are abnormally over-expressed in certain cancer cells and others are under-expressed. For example, microRNAs are differentially expressed in cancer cells (WO2008/154098, US2013/0059015, US2013/0042333, WO2011/157294); cancer stem cells (US2012/0053224); pancreatic cancers and diseases (US2009/0131348, US2011/0171646, US2010/0286232, U.S. Pat. No. 8,389,210); asthma and inflammation (U.S. Pat. No. 8,415,096); prostate cancer (US2013/0053264); hepatocellular carcinoma (WO2012/151212, US2012/0329672, WO2008/054828, U.S. Pat. No. 8,252,538); lung cancer cells (WO2011/076143, WO2013/033640, WO2009/070653, US2010/0323357); cutaneous T cell lymphoma (WO2013/011378); colorectal cancer cells (WO2011/0281756, WO2011/076142); cancer positive lymph nodes (WO2009/100430, US2009/0263803); nasopharyngeal carcinoma (EP2112235); chronic obstructive pulmonary disease (US2012/0264626, US2013/0053263); thyroid cancer (WO2013/066678); ovarian cancer cells US2012/0309645, WO2011/095623); breast cancer cells (WO2008/154098, WO2007/081740, US2012/0214699), leukemia and lymphoma (WO2008/073915, US2009/0092974, US2012/0316081, US2012/0283310, WO2010/018563, the content of each of which is incorporated herein by reference in its entirety.)

As a non-limiting example, microRNA sites that are over-expressed in certain cancer and/or tumor cells can be removed from the 3-UTR of the polynucleotide encoding the polypeptide of interest, restoring the expression suppressed by the over-expressed microRNAs in cancer cells, thus ameliorating the corresponsive biological function, for instance, transcription stimulation and/or repression, cell cycle arrest, apoptosis and cell death. Normal cells and tissues, wherein microRNAs expression is not up-regulated, will remain unaffected.

MicroRNA can also regulate complex biological processes such as angiogenesis (miR-132) (Anand and Cheresh Curr Opin Hematol 2011 18:171-176). In the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the invention, binding sites for microRNAs that are involved in such processes may be removed or introduced, in order to tailor the expression of the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids expression to biologically relevant cell types or to the context of relevant biological processes. In this context, the mRNA are defined as auxotrophic mRNA.

MicroRNA gene regulation may be influenced by the sequence surrounding the microRNA such as, but not limited to, the species of the surrounding sequence, the type of sequence (e.g., heterologous, homologous and artificial), regulatory elements in the surrounding sequence and/or structural elements in the surrounding sequence. The microRNA may be influenced by the 5′ UTR and/or the 3′ UTR. As a non-limiting example, a non-human 3′ UTR may increase the regulatory effect of the microRNA sequence on the expression of a polypeptide of interest compared to a human 3′ UTR of the same sequence type.

In one embodiment, other regulatory elements and/or structural elements of the 5′ UTR can influence microRNA mediated gene regulation. One example of a regulatory element and/or structural element is a structured IRES (Internal Ribosome Entry Site) in the 5′ UTR, which is necessary for the binding of translational elongation factors to initiate protein translation. EIF4A2 binding to this secondarily structured element in the 5′ UTR is necessary for microRNA mediated gene expression (Meijer H A et al., Science, 2013, 340, 82-85, herein incorporated by reference in its entirety). The alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the invention can further be alternative to include this structured 5′ UTR in order to enhance microRNA mediated gene regulation.

At least one microRNA site can be engineered into the 3′ UTR of the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids of the present invention. In this context, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, at least nine, at least ten or more microRNA sites may be engineered into the 3′ UTR of the ribonucleic acids of the present invention. In one embodiment, the microRNA sites incorporated into the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids may be the same or may be different microRNA sites. In another embodiment, the microRNA sites incorporated into the alternative nucleic acids, enhanced alternative RNA or ribonucleic acids may target the same or different tissues in the body. As a non-limiting example, through the introduction of tissue-, cell-type-, or disease-specific microRNA binding sites in the 3′ UTR of an alternative nucleic acid mRNA, the degree of expression in specific cell types (e.g. hepatocytes, myeloid cells, endothelial cells, cancer cells) can be reduced.

In one embodiment, a microRNA site can be engineered near the 5′ terminus of the 3′ UTR, about halfway between the 5′ terminus and 3′ terminus of the 3′ UTR and/or near the 3′ terminus of the 3′ UTR. As a non-limiting example, a microRNA site may be engineered near the 5′ terminus of the 3′ UTR and about halfway between the 5′ terminus and 3′ terminus of the 3′ UTR. As another non-limiting example, a microRNA site may be engineered near the 3′ terminus of the 3′ UTR and about halfway between the 5′ terminus and 3′ terminus of the 3′ UTR. As yet another non-limiting example, a microRNA site may be engineered near the 5′ terminus of the 3′ UTR and near the 3′ terminus of the 3′ UTR.

In another embodiment, a 3′ UTR can comprise 4 microRNA sites. The microRNA sites may be complete microRNA binding sites, microRNA seed sequences and/or microRNA binding site sequences without the seed sequence.

In one embodiment, a nucleic acid of the invention may be engineered to include at least one microRNA in order to dampen the antigen presentation by antigen presenting cells. The microRNA may be the complete microRNA sequence, the microRNA seed sequence, the microRNA sequence without the seed or a combination thereof. As a non-limiting example, the microRNA incorporated into the nucleic acid may be specific to the hematopoietic system. As another non-limiting example, the microRNA incorporated into the nucleic acid of the invention to dampen antigen presentation is miR-142-3p.

In one embodiment, a nucleic acid may be engineered to include microRNA sites which are expressed in different tissues of a subject. As a non-limiting example, an alternative nucleic acid, enhanced alternative RNA or ribonucleic acid of the present invention may be engineered to include miR-192 and miR-122 to regulate expression of the alternative nucleic acid, enhanced alternative RNA or ribonucleic acid in the liver and kidneys of a subject. In another embodiment, an alternative nucleic acid, enhanced alternative RNA or ribonucleic acid may be engineered to include more than one microRNA sites for the same tissue. For example, an alternative nucleic acid, enhanced alternative RNA or ribonucleic acid of the present invention may be engineered to include miR-17-92 and miR-126 to regulate expression of the alternative nucleic acid, enhanced alternative RNA or ribonucleic acid in endothelial cells of a subject.

In one embodiment, the therapeutic window and or differential expression associated with the target polypeptide encoded by the alternative nucleic acid, enhanced alternative RNA or ribonucleic acid encoding a signal (also referred to herein as a polynucleotide) of the invention may be altered. For example, polynucleotides may be designed whereby a death signal is more highly expressed in cancer cells (or a survival signal in a normal cell) by virtue of the miRNA signature of those cells. Where a cancer cell expresses a lower level of a particular miRNA, the polynucleotide encoding the binding site for that miRNA (or miRNAs) would be more highly expressed. Hence, the target polypeptide encoded by the polynucleotide is selected as a protein which triggers or induces cell death. Neighboring noncancer cells, harboring a higher expression of the same miRNA would be less affected by the encoded death signal as the polynucleotide would be expressed at a lower level due to the effects of the miRNA binding to the binding site or “sensor” encoded in the 3′ UTR. Conversely, cell survival or cytoprotective signals may be delivered to tissues containing cancer and non-cancerous cells where a miRNA has a higher expression in the cancer cells—the result being a lower survival signal to the cancer cell and a larger survival signature to the normal cell. Multiple polynucleotides may be designed and administered having different signals according to the previous paradigm.

In one embodiment, the expression of a nucleic acid may be controlled by incorporating at least one sensor sequence in the nucleic acid and formulating the nucleic acid. As a non-limiting example, a nucleic acid may be targeted to an orthotopic tumor by having a nucleic acid incorporating a miR-122 binding site and formulated in a lipid nanoparticle comprising the cationic lipid DLin-KC2-DMA.

According to the present invention, the polynucleotides may be altered as to avoid the deficiencies of other polypeptide-encoding molecules of the art. Hence, in this embodiment the polynucleotides are referred to as alternative polynucleotides.

Through an understanding of the expression patterns of microRNA in different cell types, alternative nucleic acids, enhanced alternative RNA or ribonucleic acids such as polynucleotides can be engineered for more targeted expression in specific cell types or only under specific biological conditions.

Through introduction of tissue-specific microRNA binding sites, alternative nucleic acids, enhanced alternative RNA or ribonucleic acids, could be designed that would be optimal for protein expression in a tissue or in the context of a biological condition.

Transfection experiments can be conducted in relevant cell lines, using engineered alternative nucleic acids, enhanced alternative RNA or ribonucleic acids and protein production can be assayed at various time points post-transfection. For example, cells can be transfected with different microRNA binding site-engineering nucleic acids or mRNA and by using an ELISA kit to the relevant protein and assaying protein produced at 6 hr, 12 hr, 24 hr, 48 hr, 72 hr and 7 days post-transfection. In vivo experiments can also be conducted using microRNA-binding site-engineered molecules to examine changes in tissue-specific expression of formulated alternative nucleic acids, enhanced alternative RNA or ribonucleic acids.

Non-limiting examples of cell lines which may be useful in these investigations include those from ATCC (Manassas, Va.) including MRC-5, A549, T84, NCI-H2126 [H2126], NCI-H1688 [H1688], WI-38, WI-38 VA-13 subline 2RA, WI-26 VA4, C3A [HepG2/C3A, derivative of Hep G2 (ATCC HB-8065)], THLE-3, H69AR, NCI-H292 [H292], CFPAC-1, NTERA-2 c1.D1 [NT2/D1], DMS 79, DMS 53, DMS 153, DMS 114, MSTO-211H, SW 1573 [SW-1573, SW1573], SW 1271 [SW-1271, SW1271], SHP-77, SNU-398, SNU-449, SNU-182, SNU-475, SNU-387, SNU-423, NL20, NL20-TA [NL20T-A], THLE-2, HBE135-E6E7, HCC827, HCC4006, NCI-H23 [H23], NCI-H1299, NCI-H187 [H187], NCI-H358 [H-358, H358], NCI-H378 [H378], NCI-H522 [H522], NCI-H526 [H526], NCI-H727 [H727], NCI-H810 [H810], NCI-H889 [H889], NCI-H1155 [H1155], NCI-H1404 [H1404], NCI-N87 [N87], NCI-H196 [H196], NCI-H211 [H211], NCI-H220 [H220], NCI-H250 [H250], NCI-H524 [H524], NCI-H647 [H647], NCI-H650 [H650], NCI-H711 [H711], NCI-H719 [H719], NCI-H740 [H740], NCI-H748 [H748], NCI-H774 [H774], NCI-H838 [H838], NCI-H841 [H841], NCI-H847 [H847], NCI-H865 [H865], NCI-H920 [H920], NCI-H1048 [H1048], NCI-H1092 [H1092], NCI-H1105 [H1105], NCI-H1184 [H1184], NCI-H1238 [H1238], NCI-H1341 [H1341], NCI-H1385 [H1385], NCI-H1417 [H1417], NCI-H1435 [H1435], NCI-H1436 [H1436], NCI-H1437 [H1437], NCI-H1522 [H1522], NCI-H1563 [H1563], NCI-H1568 [H1568], NCI-H1573 [H1573], NCI-H1581 [H1581], NCI-H1618 [H1618], NCI-H1623 [H1623], NCI-H1650 [H-1650, H1650], NCI-H1651 [H1651], NCI-H1666 [H-1666, H1666], NCI-H1672 [H1672], NCI-H1693 [H1693], NCI-H1694 [H1694], NCI-H1703 [H1703], NCI-H1734 [H-1734, H1734], NCI-H1755 [H1755], NCI-H1755 [H1755], NCI-H1770 [H1770], NCI-H1793 [H1793], NCI-H1836 [H1836], NCI-H1838 [H1838], NCI-H1869 [H1869], NCI-H1876 [H1876], NCI-H1882 [H1882], NCI-H1915 [H1915], NCI-H1930 [H1930], NCI-H1944 [H1944], NCI-H1975 [H-1975, H1975], NCI-H1993 [H1993], NCI-H2023 [H2023], NCI-H2029 [H2029], NCI-H2030 [H2030], NCI-H2066 [H2066], NCI-H2073 [H2073], NCI-H2081 [H2081], NCI-H2085 [H2085], NCI-H2087 [H2087], NCI-H2106 [H2106], NCI-H2110 [H2110], NCI-H2135 [H2135], NCI-H2141 [H2141], NCI-H2171 [H2171], NCI-H2172 [H2172], NCI-H2195 [H2195], NCI-H2196 [H2196], NCI-H2198 [H2198], NCI-H2227 [H2227], NCI-H2228 [H2228], NCI-H2286 [H2286], NCI-H2291 [H2291], NCI-H2330 [H2330], NCI-H2342 [H2342], NCI-H2347 [H2347], NCI-H2405 [H2405], NCI-H2444 [H2444], UMC-11, NCI-H64 [H64], NCI-H735 [H735], NCI-H735 [H735], NCI-H1963 [H1963], NCI-H2107 [H2107], NCI-H2108 [H2108], NCI-H2122 [H2122], Hs 573.T, Hs 573.Lu, PLC/PRF/5, BEAS-2B, Hep G2, Tera-1, Tera-2, NCI-H69 [H69], NCI-H128 [H128], ChaGo-K-1, NCI-H446 [H446], NCI-H209 [H209], NCI-H146 [H146], NCI-H441 [H441], NCI-H82 [H82], NCI-H460 [H460], NCI-H596 [H596], NCI-H676B [H676B], NCI-H345 [H345], NCI-H820 [H820], NCI-H520 [H520], NCI-H661 [H661], NCI-H510A [H510A, NCI-H510], SK-HEP-1, A-427, Calu-1, Calu-3, Calu-6, SK-LU-1, SK-MES-1, SW 900 [SW-900, SW900], Malme-3M, and Capan-1.

In some embodiments, alternative messenger RNA can be designed to incorporate microRNA binding region sites that either have 100% identity to known seed sequences or have less than 100% identity to seed sequences. The seed sequence can be partially mutated to decrease microRNA binding affinity and as such result in reduced downmodulation of that mRNA transcript. In essence, the degree of match or mismatch between the target mRNA and the microRNA seed can act as a rheostat to more finely tune the ability of the microRNA to modulate protein expression. In addition, mutation in the non-seed region of a microRNA binding site may also impact the ability of a microRNA to modulate protein expression.

In one embodiment, a miR sequence may be incorporated into the loop of a stem loop.

In another embodiment, a miR seed sequence may be incorporated in the loop of a stem loop and a miR binding site may be incorporated into the 5′ or 3′ stem of the stem loop.

In one embodiment, a TEE may be incorporated on the 5′ end of the stem of a stem loop and a miR seed may be incorporated into the stem of the stem loop. In another embodiment, a TEE may be incorporated on the 5′ end of the stem of a stem loop, a miR seed may be incorporated into the stem of the stem loop and a miR binding site may be incorporated into the 3′end of the stem or the sequence after the stem loop. The miR seed and the miR binding site may be for the same and/or different miR sequences.

In one embodiment, the incorporation of a miR sequence and/or a TEE sequence changes the shape of the stem loop region which may increase and/or decrease translation. (see e.g, Kedde et al. A Pumilio-induced RNA structure switch in p27-3′ UTR controls miR-221 and miR-22 accessibility. Nature Cell Biology. 2010, incorporated herein by reference in its entirety).

In one embodiment, the incorporation of a miR sequence and/or a TEE sequence changes the shape of the stem loop region which may increase and/or decrease translation. (see e.g, Kedde et al. A Pumilio-induced RNA structure switch in p27-3′ UTR controls miR-221 and miR-22 accessibility. Nature Cell Biology. 2010, incorporated herein by reference in its entirety).

In one embodiment, the 5′ UTR may comprise at least one microRNA sequence. The microRNA sequence may be, but is not limited to, a 19 or 22 nucleotide sequence and/or a microRNA sequence without the seed.

In one embodiment the microRNA sequence in the 5′ UTR may be used to stabilize the nucleic acid and/or mRNA described herein.

In another embodiment, a microRNA sequence in the 5′ UTR may be used to decrease the accessibility of the site of translation initiation such as, but not limited to a start codon. Matsuda et al (PLoS One. 2010 11(5):e15057; incorporated herein by reference in its entirety) used antisense locked nucleic acid (LNA) oligonucleotides and exon-junction complexes (EJCs) around a start codon (−4 to +37 where the A of the AUG codons is +1) in order to decrease the accessibility to the first start codon (AUG). Matsuda showed that altering the sequence around the start codon with an LNA or EJC the efficiency, length and structural stability of the nucleic acid or mRNA is affected. The nucleic acids or mRNA of the present invention may comprise a microRNA sequence, instead of the LNA or EJC sequence described by Matsuda et al, near the site of translation initiation in order to decrease the accessibility to the site of translation initiation. The site of translation initiation may be prior to, after or within the microRNA sequence. As a non-limiting example, the site of translation initiation may be located within a microRNA sequence such as a seed sequence or binding site. As another non-limiting example, the site of translation initiation may be located within a miR-122 sequence such as the seed sequence or the mir-122 binding site.

In one embodiment, the nucleic acids or mRNA of the present invention may include at least one microRNA in order to dampen the antigen presentation by antigen presenting cells. The microRNA may be the complete microRNA sequence, the microRNA seed sequence, the microRNA sequence without the seed or a combination thereof. As a non-limiting example, the microRNA incorporated into the nucleic acids or mRNA of the present invention may be specific to the hematopoietic system. As another non-limiting example, the microRNA incorporated into the nucleic acids or mRNA of the present invention to dampen antigen presentation is miR-142-3p.

In one embodiment, the nucleic acids or mRNA of the present invention may include at least one microRNA in order to dampen expression of the encoded polypeptide in a cell of interest. As a non-limiting example, the nucleic acids or mRNA of the present invention may include at least one miR-122 binding site in order to dampen expression of an encoded polypeptide of interest in the liver. As another non-limiting example, the nucleic acids or mRNA of the present invention may include at least one miR-142-3p binding site, miR-142-3p seed sequence, miR-142-3p binding site without the seed, miR-142-5p binding site, miR-142-5p seed sequence, miR-142-5p binding site without the seed, miR-146 binding site, miR-146 seed sequence and/or miR-146 binding site without the seed sequence.

In one embodiment, the nucleic acids or mRNA of the present invention may comprise at least one microRNA binding site in the 3′ UTR in order to selectively degrade mRNA therapeutics in the immune cells to subdue unwanted immunogenic reactions caused by therapeutic delivery. As a non-limiting example, the microRNA binding site may be the alternative nucleic acids more unstable in antigen presenting cells. Non-limiting examples of these microRNA include mir-142-5p, mir-142-3p, mir-146α-5p and mir-146-3p.

In one embodiment, the nucleic acids or mRNA of the present invention comprises at least one microRNA sequence in a region of the nucleic acid or mRNA which may interact with a RNA binding protein.

RNA Motifs for RNA Binding Proteins (RBPs)

RNA binding proteins (RBPs) can regulate numerous aspects of co- and post-transcription gene expression such as, but not limited to, RNA splicing, localization, translation, turnover, polyadenylation, capping, alteration, export and localization. RNA-binding domains (RBDs), such as, but not limited to, RNA recognition motif (RR) and hnRNP K-homology (KH) domains, typically regulate the sequence association between RBPs and their RNA targets (Ray et al. Nature 2013. 499:172-177; incorporated herein by reference in its entirety). In one embodiment, the canonical RBDs can bind short RNA sequences. In another embodiment, the canonical RBDs can recognize structure RNAs.

In one embodiment, to increase the stability of the mRNA of interest, an mRNA encoding HuR can be co-transfected or co-injected along with the mRNA of interest into the cells or into the tissue. These proteins can also be tethered to the mRNA of interest in vitro and then administered to the cells together. Poly A tail binding protein, PABP interacts with eukaryotic translation initiation factor eIF4G to stimulate translational initiation. Co-administration of mRNAs encoding these RBPs along with the mRNA drug and/or tethering these proteins to the mRNA drug in vitro and administering the protein-bound mRNA into the cells can increase the translational efficiency of the mRNA. The same concept can be extended to co-administration of mRNA along with mRNAs encoding various translation factors and facilitators as well as with the proteins themselves to influence RNA stability and/or translational efficiency.

In one embodiment, the nucleic acids and/or mRNA may comprise at least one RNA-binding motif such as, but not limited to a RNA-binding domain (RBD).

In one embodiment, the RBD may be any of the RBDs, fragments or variants thereof descried by Ray et al. (Nature 2013. 499:172-177; incorporated herein by reference in its entirety).

In one embodiment, the nucleic acids or mRNA of the present invention may comprise a sequence for at least one RNA-binding domain (RBDs). When the nucleic acids or mRNA of the present invention comprise more than one RBD, the RBDs do not need to be from the same species or even the same structural class.

In one embodiment, at least one flanking region (e.g., the 5′ UTR and/or the 3′ UTR) may comprise at least one RBD. In another embodiment, the first flanking region and the second flanking region may both comprise at least one RBD. The RBD may be the same or each of the RBDs may have at least 60% sequence identity to the other RBD. As a non-limiting example, at least on RBD may be located before, after and/or within the 3′ UTR of the nucleic acid or mRNA of the present invention. As another non-limiting example, at least one RBD may be located before or within the first 300 nucleosides of the 3′ UTR.

In another embodiment, the nucleic acids and/or mRNA of the present invention may comprise at least one RBD in the first region of linked nucleosides. The RBD may be located before, after or within a coding region (e.g., the ORF).

In yet another embodiment, the first region of linked nucleosides and/or at least one flanking region may comprise at least on RBD. As a non-limiting example, the first region of linked nucleosides may comprise a RBD related to splicing factors and at least one flanking region may comprise a RBD for stability and/or translation factors.

In one embodiment, the nucleic acids and/or mRNA of the present invention may comprise at least one RBD located in a coding and/or non-coding region of the nucleic acids and/or mRNA.

In one embodiment, at least one RBD may be incorporated into at least one flanking region to increase the stability of the nucleic acid and/or mRNA of the present invention.

In one embodiment, a microRNA sequence in a RNA binding protein motif may be used to decrease the accessibility of the site of translation initiation such as, but not limited to a start codon. The nucleic acids or mRNA of the present invention may comprise a microRNA sequence, instead of the LNA or EJC sequence described by Matsuda et al, near the site of translation initiation in order to decrease the accessibility to the site of translation initiation. The site of translation initiation may be prior to, after or within the microRNA sequence. As a non-limiting example, the site of translation initiation may be located within a microRNA sequence such as a seed sequence or binding site. As another non-limiting example, the site of translation initiation may be located within a miR-122 sequence such as the seed sequence or the mir-122 binding site.

In another embodiment, an antisense locked nucleic acid (LNA) oligonucleotides and exon-junction complexes (EJCs) may be used in the RNA binding protein motif. The LNA and EJCs may be used around a start codon (−4 to +37 where the A of the AUG codons is +1) in order to decrease the accessibility to the first start codon (AUG).

Codon Optimization

The polynucleotides of the invention, their regions or parts or subregions may be codon optimized. Codon optimization methods are known in the art and may be useful in efforts to achieve one or more of several goals. These goals include to match codon frequencies in target and host organisms to ensure proper folding, bias GC content to increase mRNA stability or reduce secondary structures, minimize tandem repeat codons or base runs that may impair gene construction or expression, customize transcriptional and translational control regions, insert or remove protein trafficking sequences, remove/add post translation modification sites in encoded protein (e.g., glycosylation sites), add, remove or shuffle protein domains, insert or delete restriction sites, modify ribosome binding sites and mRNA degradation sites, to adjust translational rates to allow the various domains of the protein to fold properly, or to reduce or eliminate problem secondary structures within the polynucleotide. Codon optimization tools, algorithms and services are known in the art, non-limiting examples include services from GeneArt (Life Technologies), DNA2.0 (Menlo Park Calif.) and/or proprietary methods. In one embodiment, the ORF sequence is optimized using optimization algorithms. Codon options for each amino acid are given in Table 11.

TABLE 11 Codon Options. Single Letter Amino Acid Code Codon Options Isoleucine I ATT, ATC, ATA Leucine L CTT, CTC, CTA, CTG, TTA, TTG Valine V GTT, GTC, GTA, GTG Phenylalanine F TTT, TTC Methionine M ATG Cysteine C TGT, TGC Alanine A GCT, GCC, GCA, GCG Glycine G GGT, GGC, GGA, GGG Proline P CCT, CCC, CCA, CCG Threonine T ACT, ACC, ACA, ACG Serine S TCT, TCC, TCA, TCG, AGT, AGC Tyrosine Y TAT, TAC Tryptophan W TGG Glutamine Q CAA, CAG Asparagine N AAT, AAC Histidine H CAT, CAC Glutamic acid E GAA, GAG Aspartic acid D GAT, GAC Lysine K AAA, AAG Arginine R CGT, CGC, CGA, CGG, AGA, AGG Selenocysteine Sec UGA in mRNA in presence of Selenocystein insertion element (SECIS) Stop codons Stop TAA, TAG, TGA

“Codon optimized” refers to the modification of a starting nucleotide sequence by replacing at least one codon of the starting nucleotide sequence with a codon that is more frequently used in the group of abundant polypeptides of the host organism. Table 12 contains the codon usage frequency for humans (Codon usage database: [[www.]]kazusa.or.jp/codon/cgi-bin/showcodon.cgi?species=9606&aa=1&style=N).

Codon optimization may be used to increase the expression of polypeptides by the replacement of at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, at least nine, at least ten or at least 1%, at least 2%, at least 4%, at least 6%, at least 8%, at least 10%, at least 20%, at least 40%, at least 60%, at least 80%, at least 90% or at least 95%, or all codons of the starting nucleotide sequence with more frequently or the most frequently used codons for the respective amino acid as determined for the group of abundant proteins.

In one embodiment of the invention, the alternative nucleotide sequences contain for each amino acid the most frequently used codons of the abundant proteins of the respective host cell.

TABLE 12 Codon usage frequency table for humans. Amino Amino Amino Amino Codon Acid % Codon Acid % Codon Acid % Codon Acid % UUU F 46 UCU S 19 UAU Y 44 UGU C 46 UUC F 54 UCC S 22 UAC Y 56 UGC C 54 UUA L 8 UCA S 15 UAA * 30 UGA * 47 UUG L 13 UCG S 5 UAG * 24 UGG W 100 CUU L 13 CCU P 29 CAU H 42 CGU R 8 CUC L 20 CCC P 32 CAC H 58 CGC R 18 CUA L 7 CCA P 28 CAA Q 27 CGA R 11 CUG L 40 CCG P 11 CAG Q 73 CGG R 20 AUU I 36 ACU T 25 AAU N 47 AGU S 15 AUC I 47 ACC T 36 AAC N 53 AGC S 24 AUA I 17 ACA T 28 AAA K 43 AGA R 21 AUG M 100 ACG T 11 AAG K 57 AGG R 21 GUU V 18 GCU A 27 GAU D 46 GGU G 16 GUC V 24 GCC A 40 GAC D 54 GGC G 34 GUA V 12 GCA A 23 GAA E 42 GGA G 25 GUG V 46 GCG A 11 GAG E 58 GGG G 25

In one embodiment, after a nucleotide sequence has been codon optimized it may be further evaluated for regions containing restriction sites. At least one nucleotide within the restriction site regions may be replaced with another nucleotide in order to remove the restriction site from the sequence but the replacement of nucleotides does alter the amino acid sequence which is encoded by the codon optimized nucleotide sequence.

Features, which may be considered beneficial in some embodiments of the present invention, may be encoded by regions of the polynucleotide and such regions may be upstream (5′) or downstream (3′) to a region which encodes a polypeptide. These regions may be incorporated into the polynucleotide before and/or after codon optimization of the protein encoding region or open reading frame (ORF). It is not required that a polynucleotide contain both a 5′ and 3′ flanking region. Examples of such features include, but are not limited to, untranslated regions (UTRs), Kozak sequences, an oligo(dT) sequence, and detectable tags and may include multiple cloning sites which may have XbaI recognition.

In some embodiments, a 5′ UTR and/or a 3′ UTR region may be provided as flanking regions. Multiple 5′ or 3′ UTRs may be included in the flanking regions and may be the same or of different sequences. Any portion of the flanking regions, including none, may be codon optimized and any may independently contain one or more different structural or chemical alterations, before and/or after codon optimization.

After optimization (if desired), the polynucleotides components are reconstituted and transformed into a vector such as, but not limited to, plasmids, viruses, cosmids, and artificial chromosomes. For example, the optimized polynucleotide may be reconstituted and transformed into chemically competent E. coli, yeast, neurospora, maize, drosophila where high copy plasmid-like or chromosome structures occur by methods described herein.

Uses of Alternative Nucleic Acids

Therapeutic Agents

The alternative nucleic acids described herein can be used as therapeutic agents. For example, an alternative nucleic acid described herein can be administered to an animal or subject, wherein the alternative nucleic acid is translated in vivo to produce a therapeutic peptide in the animal or subject. Accordingly, provided herein are mRNA, compositions (such as pharmaceutical compositions), methods, kits, and reagents for treatment or prevention of disease or conditions in humans and other mammals. The active therapeutic agents of the present disclosure include alternative nucleic acids, cells containing alternative nucleic acids or polypeptides translated from the alternative nucleic acids, polypeptides translated from alternative nucleic acids, cells contacted with cells containing alternative nucleic acids or polypeptides translated from the alternative nucleic acids, tissues containing cells containing alternative nucleic acids and organs containing tissues containing cells containing alternative nucleic acids.

Provided are methods of inducing translation of a synthetic or recombinant polynucleotide to produce a polypeptide in a cell population using the alternative nucleic acids described herein. Such translation can be in vivo, ex vivo, in culture, or in vitro. The cell population is contacted with an effective amount of a composition containing a nucleic acid that has at least one nucleoside alteration, and a translatable region encoding the polypeptide. The population is contacted under conditions such that the nucleic acid is localized into one or more cells of the cell population and the recombinant polypeptide is translated in the cell from the nucleic acid.

An effective amount of the composition is provided based, at least in part, on the target tissue, target cell type, means of administration, physical characteristics of the nucleic acid (e.g., size, and extent of alternative nucleosides), and other determinants. In general, an effective amount of the composition provides efficient protein production in the cell, preferably more efficient than a composition containing a corresponding unaltered nucleic acid. Increased efficiency may be demonstrated by increased cell transfection (i.e., the percentage of cells transfected with the nucleic acid), increased protein translation from the nucleic acid, decreased nucleic acid degradation (as demonstrated, e.g., by increased duration of protein translation from a modified nucleic acid), or reduced innate immune response of the host cell or improve therapeutic utility.

Aspects of the present disclosure are directed to methods of inducing in vivo translation of a recombinant polypeptide in a mammalian subject in need thereof. Therein, an effective amount of a composition containing a nucleic acid that has at least one nucleoside alteration and a translatable region encoding the polypeptide is administered to the subject using the delivery methods described herein. The nucleic acid is provided in an amount and under other conditions such that the nucleic acid is localized into a cell or cells of the subject and the recombinant polypeptide is translated in the cell from the nucleic acid. The cell in which the nucleic acid is localized, or the tissue in which the cell is present, may be targeted with one or more than one rounds of nucleic acid administration.

Other aspects of the present disclosure relate to transplantation of cells containing alternative nucleic acids to a mammalian subject. Administration of cells to mammalian subjects is known to those of ordinary skill in the art, such as local implantation (e.g., topical or subcutaneous administration), organ delivery or systemic injection (e.g., intravenous injection or inhalation), as is the formulation of cells in pharmaceutically acceptable carrier. Compositions containing alternative nucleic acids are formulated for administration intramuscularly, transarterially, intraperitoneally, intravenously, intranasally, subcutaneously, endoscopically, transdermally, or intrathecally. In some embodiments, the composition is formulated for extended release.

The subject to whom the therapeutic agent is administered suffers from or is at risk of developing a disease, disorder, or deleterious condition. Provided are methods of identifying, diagnosing, and classifying subjects on these bases, which may include clinical diagnosis, biomarker levels, genome-wide association studies (GWAS), and other methods known in the art.

In certain embodiments, the administered alternative nucleic acid directs production of one or more recombinant polypeptides that provide a functional activity which is substantially absent in the cell in which the recombinant polypeptide is translated. For example, the missing functional activity may be enzymatic, structural, or gene regulatory in nature.

In other embodiments, the administered alternative nucleic acid directs production of one or more recombinant polypeptides that replace a polypeptide (or multiple polypeptides) that is substantially absent in the cell in which the recombinant polypeptide is translated. Such absence may be due to genetic mutation of the encoding gene or regulatory pathway thereof. In other embodiments, the administered alternative nucleic acid directs production of one or more recombinant polypeptides to supplement the amount of polypeptide (or multiple polypeptides) that is present in the cell in which the recombinant polypeptide is translated. Alternatively, the recombinant polypeptide functions to antagonize the activity of an endogenous protein present in, on the surface of, or secreted from the cell. Usually, the activity of the endogenous protein is deleterious to the subject, for example, due to mutation of the endogenous protein resulting in altered activity or localization. Additionally, the recombinant polypeptide antagonizes, directly or indirectly, the activity of a biological moiety present in, on the surface of, or secreted from the cell. Examples of antagonized biological moieties include lipids (e.g., cholesterol), a lipoprotein (e.g., low density lipoprotein), a nucleic acid, a carbohydrate, or a small molecule toxin.

The recombinant proteins described herein are engineered for localization within the cell, potentially within a specific compartment such as the nucleus, or are engineered for secretion from the cell or translocation to the plasma membrane of the cell.

As described herein, a useful feature of the alternative nucleic acids of the present disclosure is the capacity to reduce, evade, avoid or eliminate the innate immune response of a cell to an exogenous nucleic acid. Provided are methods for performing the titration, reduction or elimination of the immune response in a cell or a population of cells. In some embodiments, the cell is contacted with a first composition that contains a first dose of a first exogenous nucleic acid including a translatable region and at least one nucleoside alteration, and the level of the innate immune response of the cell to the first exogenous nucleic acid is determined. Subsequently, the cell is contacted with a second composition, which includes a second dose of the first exogenous nucleic acid, the second dose containing a lesser amount of the first exogenous nucleic acid as compared to the first dose. Alternatively, the cell is contacted with a first dose of a second exogenous nucleic acid. The second exogenous nucleic acid may contain one or more alternative nucleosides, which may be the same or different from the first exogenous nucleic acid or, alternatively, the second exogenous nucleic acid may not contain alternative nucleosides. The steps of contacting the cell with the first composition and/or the second composition may be repeated one or more times. Additionally, efficiency of protein production (e.g., protein translation) in the cell is optionally determined, and the cell may be re-transfected with the first and/or second composition repeatedly until a target protein production efficiency is achieved.

Therapeutics for Diseases and Conditions

Provided are methods for treating or preventing a symptom of diseases characterized by missing or aberrant protein activity, by replacing the missing protein activity or overcoming the aberrant protein activity. Because of the rapid initiation of protein production following introduction of alternative mRNAs, as compared to viral DNA vectors, the compounds of the present disclosure are particularly advantageous in treating acute diseases such as sepsis, stroke, and myocardial infarction. Moreover, the lack of transcriptional regulation of the alternative mRNAs of the present disclosure is advantageous in that accurate titration of protein production is achievable. Multiple diseases are characterized by missing (or substantially diminished such that proper protein function does not occur) protein activity. Such proteins may not be present, are present in very low quantities or are essentially non-functional. The present disclosure provides a method for treating such conditions or diseases in a subject by introducing nucleic acid or cell-based therapeutics containing the alternative nucleic acids provided herein, wherein the alternative nucleic acids encode for a protein that replaces the protein activity missing from the target cells of the subject.

Diseases characterized by dysfunctional or aberrant protein activity include, but not limited to, cancer and proliferative diseases, genetic diseases (e.g., cystic fibrosis), autoimmune diseases, diabetes, neurodegenerative diseases, cardiovascular diseases, and metabolic diseases. The present disclosure provides a method for treating such conditions or diseases in a subject by introducing nucleic acid or cell-based therapeutics containing the alternative nucleic acids provided herein, wherein the alternative nucleic acids encode for a protein that antagonizes or otherwise overcomes the aberrant protein activity present in the cell of the subject.

Specific examples of a dysfunctional protein are the missense or nonsense mutation variants of the cystic fibrosis transmembrane conductance regulator (CFTR) gene, which produce a dysfunctional or nonfunctional, respectively, protein variant of CFTR protein, which causes cystic fibrosis.

Thus, provided are methods of treating cystic fibrosis in a mammalian subject by contacting a cell of the subject with an alternative nucleic acid having a translatable region that encodes a functional CFTR polypeptide, under conditions such that an effective amount of the CTFR polypeptide is present in the cell. Preferred target cells are epithelial cells, such as the lung, and methods of administration are determined in view of the target tissue; i.e., for lung delivery, the RNA molecules are formulated for administration by inhalation. Therefore, in certain embodiments, the polypeptide of interest encoded by the mRNA of the invention is the CTFR polypeptide and the mRNA or pharmaceutical composition of the invention is for use in treating cystic fibrosis.

In another embodiment, the present disclosure provides a method for treating hyperlipidemia in a subject, by introducing into a cell population of the subject with an alternative mRNA molecule encoding Sortilin, a protein recently characterized by genomic studies, thereby ameliorating the hyperlipidemia in a subject. The SORT1 gene encodes a trans-Golgi network (TGN) transmembrane protein called Sortilin. Genetic studies have shown that one of five individuals has a single nucleotide polymorphism, rs12740374, in the 1p13 locus of the SORT1 gene that predisposes them to having low levels of low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL). Each copy of the minor allele, present in about 30% of people, alters LDL cholesterol by 8 mg/dL, while two copies of the minor allele, present in about 5% of the population, lowers LDL cholesterol 16 mg/dL. Carriers of the minor allele have also been shown to have a 40% decreased risk of myocardial infarction. Functional in vivo studies in mice describes that overexpression of SORT1 in mouse liver tissue led to significantly lower LDL-cholesterol levels, as much as 80% lower, and that silencing SORT1 increased LDL cholesterol approximately 200% (Musunuru K et al. From noncoding variant to phenotype via SORT1 at the 1p13 cholesterol locus. Nature 2010; 466: 714-721). Therefore, in certain embodiments, the polypeptide of interest encoded by the mRNA of the invention is Sortilin and the mRNA or pharmaceutical composition of the invention is for use in treating hyperlipidemia.

In certain embodiments, the polypeptide of interest encoded by the mRNA of the invention is granulocyte colony-stimulating factor (GCSF), and the mRNA or pharmaceutical composition of the invention is for use in treating a neurological disease such as cerebral ischemia, or treating neutropenia, or for use in increasing the number of hematopoietic stem cells in the blood (e.g. before collection by leukapheresis for use in hematopoietic stem cell transplantation).

In certain embodiments, the polypeptide of interest encoded by the mRNA of the invention is erythropoietin (EPO), and the mRNA or pharmaceutical composition of the invention is for use in treating anemia, inflammatory bowel disease (such as Crohn's disease and/or ulcer colitis) or myelodysplasia.

Methods of Cellular Nucleic Acid Delivery

Methods of the present disclosure enhance nucleic acid delivery into a cell population, in vivo, ex vivo, or in culture. For example, a cell culture containing a plurality of host cells (e.g., eukaryotic cells such as yeast or mammalian cells) is contacted with a composition that contains an enhanced nucleic acid having at least one nucleoside alteration and, optionally, a translatable region. The composition also generally contains a transfection reagent or other compound that increases the efficiency of enhanced nucleic acid uptake into the host cells. The enhanced nucleic acid exhibits enhanced retention in the cell population, relative to a corresponding unaltered nucleic acid. The retention of the enhanced nucleic acid is greater than the retention of the unaltered nucleic acid. In some embodiments, it is at least about 50%, 75%, 90%, 95%, 100%, 150%, 200% or more than 200% greater than the retention of the unaltered nucleic acid. Such retention advantage may be achieved by one round of transfection with the enhanced nucleic acid, or may be obtained following repeated rounds of transfection.

In some embodiments, the enhanced nucleic acid is delivered to a target cell population with one or more additional nucleic acids. Such delivery may be at the same time, or the enhanced nucleic acid is delivered prior to delivery of the one or more additional nucleic acids. The additional one or more nucleic acids may be alternative nucleic acids or unaltered nucleic acids. It is understood that the initial presence of the enhanced nucleic acids does not substantially induce an innate immune response of the cell population and, moreover, that the innate immune response will not be activated by the later presence of the unaltered nucleic acids. In this regard, the enhanced nucleic acid may not itself contain a translatable region, if the protein desired to be present in the target cell population is translated from the unaltered nucleic acids.

Targeting Moieties

In embodiments of the present disclosure, alternative nucleic acids are provided to express a protein-binding partner or a receptor on the surface of the cell, which functions to target the cell to a specific tissue space or to interact with a specific moiety, either in vivo or in vitro. Suitable protein-binding partners include antibodies and functional fragments thereof, scaffold proteins, or peptides. Additionally, alternative nucleic acids can be employed to direct the synthesis and extracellular localization of lipids, carbohydrates, or other biological moieties.

Permanent Gene Expression Silencing

A method for epigenetically silencing gene expression in a mammalian subject, comprising a nucleic acid where the translatable region encodes a polypeptide or polypeptides capable of directing sequence-specific histone H3 methylation to initiate heterochromatin formation and reduce gene transcription around specific genes for the purpose of silencing the gene. For example, a gain-of-function mutation in the Janus Kinase 2 gene is responsible for the family of Myeloproliferative Diseases.

Delivery of a Detectable or Therapeutic Agent to a Biological Target

The alternative nucleosides, alternative nucleotides, and alternative nucleic acids described herein can be used in a number of different scenarios in which delivery of a substance (the “payload”) to a biological target is desired, for example delivery of detectable substances for detection of the target, or delivery of a therapeutic agent. Detection methods can include both imaging in vitro and in vivo imaging methods, e.g., immunohistochemistry, bioluminescence imaging (BLI), Magnetic Resonance Imaging (MRI), positron emission tomography (PET), electron microscopy, X-ray computed tomography, Raman imaging, optical coherence tomography, absorption imaging, thermal imaging, fluorescence reflectance imaging, fluorescence microscopy, fluorescence molecular tomographic imaging, nuclear magnetic resonance imaging, X-ray imaging, ultrasound imaging, photoacoustic imaging, lab assays, or in any situation where tagging/staining/imaging is required.

For example, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids described herein can be used in reprogramming induced pluripotent stem cells (iPS cells), which can then be used to directly track cells that are transfected compared to total cells in the cluster. In another example, a drug that is attached to the alternative nucleic acid via a linker and is fluorescently labeled can be used to track the drug in vivo, e.g. intracellularly. Other examples include the use of an alternative nucleic acid in reversible drug delivery into cells.

The alternative nucleosides, alternative nucleotides, and alternative nucleic acids described herein can be used in intracellular targeting of a payload, e.g., detectable or therapeutic agent, to specific organelle. Exemplary intracellular targets can include the nuclear localization for advanced mRNA processing, or a nuclear localization sequence (NLS) linked to the mRNA containing an inhibitor.

In addition, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids described herein can be used to deliver therapeutic agents to cells or tissues, e.g., in living animals. For example, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids described herein can be used to deliver highly polar chemotherapeutics agents to kill cancer cells. The alternative nucleic acids attached to the therapeutic agent through a linker can facilitate member permeation allowing the therapeutic agent to travel into a cell to reach an intracellular target.

In another example, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids can be attached to a viral inhibitory peptide (VIP) through a cleavable linker. The cleavable linker will release the VIP and dye into the cell. In another example, the alternative nucleosides, alternative nucleotides, and alternative nucleic acids can be attached through the linker to a ADP-ribosylate, which is responsible for the actions of some bacterial toxins, such as cholera toxin, diphtheria toxin, and pertussis toxin. These toxin proteins are ADP-ribosyltransferases that modify target proteins in human cells. For example, cholera toxin ADP-ribosylates G proteins, causing massive fluid secretion from the lining of the small intestine, resulting in life-threatening diarrhea.

Pharmaceutical Compositions

The present disclosure provides proteins generated from alternative mRNAs. Pharmaceutical compositions may optionally comprise one or more additional therapeutically active substances. In accordance with some embodiments, a method of administering pharmaceutical compositions comprising an alternative nucleic acid encoding one or more proteins to be delivered to a subject in need thereof is provided. In some embodiments, compositions are administered to humans. For the purposes of the present disclosure, the phrase “active ingredient” generally refers to a protein, protein encoding or protein-containing complex as described herein.

Although the descriptions of pharmaceutical compositions provided herein are principally directed to pharmaceutical compositions which are suitable for administration to humans, it will be understood by the skilled artisan that such compositions are generally suitable for administration to animals of all sorts. Modification of pharmaceutical compositions suitable for administration to humans in order to render the compositions suitable for administration to various animals is well understood, and the ordinarily skilled veterinary pharmacologist can design and/or perform such modification with merely ordinary, if any, experimentation. Subjects to which administration of the pharmaceutical compositions is contemplated include, but are not limited to, humans and/or other primates; mammals, including commercially relevant mammals such as cattle, pigs, horses, sheep, cats, dogs, mice, and/or rats; and/or birds, including commercially relevant birds such as chickens, ducks, geese, and/or turkeys.

Formulations of the pharmaceutical compositions described herein may be prepared by any method known or hereafter developed in the art of pharmacology. In general, such preparatory methods include the step of bringing the active ingredient into association with an excipient and/or one or more other accessory ingredients, and then, if necessary and/or desirable, shaping and/or packaging the product into a desired single- or multi-dose unit.

A pharmaceutical composition in accordance with the present disclosure may be prepared, packaged, and/or sold in bulk, as a single unit dose, and/or as a plurality of single unit doses. As used herein, a “unit dose” is discrete amount of the pharmaceutical composition comprising a predetermined amount of the active ingredient. The amount of the active ingredient is generally equal to the dosage of the active ingredient which would be administered to a subject and/or a convenient fraction of such a dosage such as, for example, one-half or one-third of such a dosage.

Relative amounts of the active ingredient, the pharmaceutically acceptable excipient, and/or any additional ingredients in a pharmaceutical composition in accordance with the present disclosure will vary, depending upon the identity, size, and/or condition of the subject treated and further depending upon the route by which the composition is to be administered. By way of example, the composition may comprise between 0.1% and 100% (w/w) active ingredient.

Pharmaceutical formulations may additionally comprise a pharmaceutically acceptable excipient, which, as used herein, includes any and all solvents, dispersion media, diluents, or other liquid vehicles, dispersion or suspension aids, surface active agents, isotonic agents, thickening or emulsifying agents, preservatives, solid binders, and lubricants, as suited to the particular dosage form desired. Remington's The Science and Practice of Pharmacy, 21^(st) Edition, A. R. Gennaro (Lippincott, Williams & Wilkins, Baltimore, Md., 2006; incorporated herein by reference) discloses various excipients used in formulating pharmaceutical compositions and known techniques for the preparation thereof. Except insofar as any conventional excipient medium is incompatible with a substance or its derivatives, such as by producing any undesirable biological effect or otherwise interacting in a deleterious manner with any other component(s) of the pharmaceutical composition, its use is contemplated to be within the scope of this present disclosure.

In some embodiments, a pharmaceutically acceptable excipient is at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% pure. In some embodiments, an excipient is approved for use in humans and for veterinary use. In some embodiments, an excipient is approved by United States Food and Drug Administration. In some embodiments, an excipient is pharmaceutical grade. In some embodiments, an excipient meets the standards of the United States Pharmacopoeia (USP), the European Pharmacopoeia (EP), the British Pharmacopoeia, and/or the International Pharmacopoeia.

Pharmaceutically acceptable excipients used in the manufacture of pharmaceutical compositions include, but are not limited to, inert diluents, dispersing and/or granulating agents, surface active agents and/or emulsifiers, disintegrating agents, binding agents, preservatives, buffering agents, lubricating agents, and/or oils. Such excipients may optionally be included in pharmaceutical formulations. Excipients such as cocoa butter and suppository waxes, coloring agents, coating agents, sweetening, flavoring, and/or perfuming agents can be present in the composition, according to the judgment of the formulator.

Exemplary diluents include, but are not limited to, calcium carbonate, sodium carbonate, calcium phosphate, dicalcium phosphate, calcium sulfate, calcium hydrogen phosphate, sodium phosphate lactose, sucrose, cellulose, microcrystalline cellulose, kaolin, mannitol, sorbitol, inositol, sodium chloride, dry starch, cornstarch, powdered sugar, and/or combinations thereof.

Exemplary granulating and/or dispersing agents include, but are not limited to, potato starch, corn starch, tapioca starch, sodium starch glycolate, clays, alginic acid, guar gum, citrus pulp, agar, bentonite, cellulose and wood products, natural sponge, cation-exchange resins, calcium carbonate, silicates, sodium carbonate, cross-linked poly(vinyl-pyrrolidone) (crospovidone), sodium carboxymethyl starch (sodium starch glycolate), carboxymethyl cellulose, cross-linked sodium carboxymethyl cellulose (croscarmellose), methylcellulose, pregelatinized starch (starch 1500), microcrystalline starch, water insoluble starch, calcium carboxymethyl cellulose, magnesium aluminum silicate (Veegum), sodium lauryl sulfate, quaternary ammonium compounds, and/or combinations thereof.

Exemplary surface active agents and/or emulsifiers include, but are not limited to, natural emulsifiers (e.g. acacia, agar, alginic acid, sodium alginate, tragacanth, chondrux, cholesterol, xanthan, pectin, gelatin, egg yolk, casein, wool fat, cholesterol, wax, and lecithin), colloidal clays (e.g. bentonite [aluminum silicate] and Veegum® [magnesium aluminum silicate]), long chain amino acid derivatives, high molecular weight alcohols (e.g. stearyl alcohol, cetyl alcohol, oleyl alcohol, triacetin monostearate, ethylene glycol distearate, glyceryl monostearate, and propylene glycol monostearate, polyvinyl alcohol), carbomers (e.g. carboxy polymethylene, polyacrylic acid, acrylic acid polymer, and carboxyvinyl polymer), carrageenan, cellulosic derivatives (e.g. carboxymethylcellulose sodium, powdered cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, methylcellulose), sorbitan fatty acid esters (e.g. polyoxyethylene sorbitan monolaurate [Tween®20], polyoxyethylene sorbitan [Tween®60], polyoxyethylene sorbitan monooleate [Tween®80], sorbitan monopalmitate [Span®40], sorbitan monostearate [Span®60], sorbitan tristearate [Span®65], glyceryl monooleate, sorbitan monooleate [Span®80]), polyoxyethylene esters (e.g. polyoxyethylene monostearate [Myrj®45], polyoxyethylene hydrogenated castor oil, polyethoxylated castor oil, polyoxymethylene stearate, and Solutol®), sucrose fatty acid esters, polyethylene glycol fatty acid esters (e.g. Cremophor®), polyoxyethylene ethers, (e.g. polyoxyethylene lauryl ether [Brij®30]), poly(vinyl-pyrrolidone), diethylene glycol monolaurate, triethanolamine oleate, sodium oleate, potassium oleate, ethyl oleate, oleic acid, ethyl laurate, sodium lauryl sulfate, Pluronic®F 68, Poloxamer®188, cetrimonium bromide, cetylpyridinium chloride, benzalkonium chloride, docusate sodium, and/or combinations thereof.

Exemplary binding agents include, but are not limited to, starch (e.g. cornstarch and starch paste); gelatin; sugars (e.g. sucrose, glucose, dextrose, dextrin, molasses, lactose, lactitol, mannitol); natural and synthetic gums (e.g. acacia, sodium alginate, extract of Irish moss, panwar gum, ghatti gum, mucilage of isapol husks, carboxymethylcellulose, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, microcrystalline cellulose, cellulose acetate, poly(vinyl-pyrrolidone), magnesium aluminum silicate (Veegum®), and larch arabogalactan); alginates; polyethylene oxide; polyethylene glycol; inorganic calcium salts; silicic acid; polymethacrylates; waxes; water; alcohol; and combinations thereof.

Exemplary preservatives may include, but are not limited to, antioxidants, chelating agents, antimicrobial preservatives, antifungal preservatives, alcohol preservatives, acidic preservatives, and/or other preservatives. Exemplary antioxidants include, but are not limited to, alpha tocopherol, ascorbic acid, acorbyl palmitate, butylated hydroxyanisole, butylated hydroxytoluene, monothioglycerol, potassium metabisulfite, propionic acid, propyl gallate, sodium ascorbate, sodium bisulfite, sodium metabisulfite, and/or sodium sulfite. Exemplary chelating agents include ethylenediaminetetraacetic acid (EDTA), citric acid monohydrate, disodium edetate, dipotassium edetate, edetic acid, fumaric acid, malic acid, phosphoric acid, sodium edetate, tartaric acid, and/or trisodium edetate. Exemplary antimicrobial preservatives include, but are not limited to, benzalkonium chloride, benzethonium chloride, benzyl alcohol, bronopol, cetrimide, cetylpyridinium chloride, chlorhexidine, chlorobutanol, chlorocresol, chloroxylenol, cresol, ethyl alcohol, glycerin, hexetidine, imidurea, phenol, phenoxyethanol, phenylethyl alcohol, phenylmercuric nitrate, propylene glycol, and/or thimerosal. Exemplary antifungal preservatives include, but are not limited to, butyl paraben, methyl paraben, ethyl paraben, propyl paraben, benzoic acid, hydroxybenzoic acid, potassium benzoate, potassium sorbate, sodium benzoate, sodium propionate, and/or sorbic acid. Exemplary alcohol preservatives include, but are not limited to, ethanol, polyethylene glycol, phenol, phenolic compounds, bisphenol, chlorobutanol, hydroxybenzoate, and/or phenylethyl alcohol. Exemplary acidic preservatives include, but are not limited to, vitamin A, vitamin C, vitamin E, beta-carotene, citric acid, acetic acid, dehydroacetic acid, ascorbic acid, sorbic acid, and/or phytic acid. Other preservatives include, but are not limited to, tocopherol, tocopherol acetate, deteroxime mesylate, cetrimide, butylated hydroxyanisol (BHA), butylated hydroxytoluened (BHT), ethylenediamine, sodium lauryl sulfate (SLS), sodium lauryl ether sulfate (SLES), sodium bisulfite, sodium metabisulfite, potassium sulfite, potassium metabisulfite, Glydant Plus®, Phenonip®, methylparaben, Germa II®115, Germaben®II, Neolone™, Kathon™, and/or Euxyl®.

Exemplary buffering agents include, but are not limited to, citrate buffer solutions, acetate buffer solutions, phosphate buffer solutions, ammonium chloride, calcium carbonate, calcium chloride, calcium citrate, calcium glubionate, calcium gluceptate, calcium gluconate, d-gluconic acid, calcium glycerophosphate, calcium lactate, propanoic acid, calcium levulinate, pentanoic acid, dibasic calcium phosphate, phosphoric acid, tribasic calcium phosphate, calcium hydroxide phosphate, potassium acetate, potassium chloride, potassium gluconate, potassium mixtures, dibasic potassium phosphate, monobasic potassium phosphate, potassium phosphate mixtures, sodium acetate, sodium bicarbonate, sodium chloride, sodium citrate, sodium lactate, dibasic sodium phosphate, monobasic sodium phosphate, sodium phosphate mixtures, tromethamine, magnesium hydroxide, aluminum hydroxide, alginic acid, pyrogen-free water, isotonic saline, Ringer's solution, ethyl alcohol, and/or combinations thereof.

Exemplary lubricating agents include, but are not limited to, magnesium stearate, calcium stearate, stearic acid, silica, talc, malt, glyceryl behanate, hydrogenated vegetable oils, polyethylene glycol, sodium benzoate, sodium acetate, sodium chloride, leucine, magnesium lauryl sulfate, sodium lauryl sulfate, and combinations thereof.

Exemplary oils include, but are not limited to, almond, apricot kernel, avocado, babassu, bergamot, black current seed, borage, cade, camomile, canola, caraway, carnauba, castor, cinnamon, cocoa butter, coconut, cod liver, coffee, corn, cotton seed, emu, eucalyptus, evening primrose, fish, flaxseed, geraniol, gourd, grape seed, hazel nut, hyssop, isopropyl myristate, jojoba, kukui nut, lavandin, lavender, lemon, litsea cubeba, macademia nut, mallow, mango seed, meadowfoam seed, mink, nutmeg, olive, orange, orange roughy, palm, palm kernel, peach kernel, peanut, poppy seed, pumpkin seed, rapeseed, rice bran, rosemary, safflower, sandalwood, sasquana, savoury, sea buckthorn, sesame, shea butter, silicone, soybean, sunflower, tea tree, thistle, tsubaki, vetiver, walnut, and wheat germ oils. Exemplary oils include, but are not limited to, butyl stearate, caprylic triglyceride, capric triglyceride, cyclomethicone, diethyl sebacate, dimethicone 360, isopropyl myristate, mineral oil, octyldodecanol, oleyl alcohol, silicone oil, and/or combinations thereof.

Liquid dosage forms for oral and parenteral administration include, but are not limited to, pharmaceutically acceptable emulsions, microemulsions, solutions, suspensions, syrups, and/or elixirs. In addition to active ingredients, liquid dosage forms may comprise inert diluents commonly used in the art such as, for example, water or other solvents, solubilizing agents and emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, dimethylformamide, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor, and sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene glycols and fatty acid esters of sorbitan, and mixtures thereof. Besides inert diluents, oral compositions can include adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and/or perfuming agents. In certain embodiments for parenteral administration, compositions are mixed with solubilizing agents such as Cremophor®, alcohols, oils, modified oils, glycols, polysorbates, cyclodextrins, polymers, and/or combinations thereof.

Injectable preparations, for example, sterile injectable aqueous or oleaginous suspensions may be formulated according to the known art using suitable dispersing agents, wetting agents, and/or suspending agents. Sterile injectable preparations may be sterile injectable solutions, suspensions, and/or emulsions in nontoxic parenterally acceptable diluents and/or solvents, for example, as a solution in 1,3-butanediol. Among the acceptable vehicles and solvents that may be employed are water, Ringer's solution, U.S.P., and isotonic sodium chloride solution. Sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose any bland fixed oil can be employed including synthetic mono- or diglycerides. Fatty acids such as oleic acid can be used in the preparation of injectables.

Injectable formulations can be sterilized, for example, by filtration through a bacterial-retaining filter, and/or by incorporating sterilizing agents in the form of sterile solid compositions which can be dissolved or dispersed in sterile water or other sterile injectable medium prior to use. In order to prolong the effect of an active ingredient, it is often desirable to slow the absorption of the active ingredient from subcutaneous or intramuscular injection. This may be accomplished by the use of a liquid suspension of crystalline or amorphous material with poor water solubility. The rate of absorption of the drug then depends upon its rate of dissolution which, in turn, may depend upon crystal size and crystalline form. Alternatively, delayed absorption of a parenterally administered drug form is accomplished by dissolving or suspending the drug in an oil vehicle.

Injectable depot forms are made by forming microencapsule matrices of the drug in biodegradable polymers such as polylactide-polyglycolide. Depending upon the ratio of drug to polymer and the nature of the particular polymer employed, the rate of drug release can be controlled. Examples of other biodegradable polymers include poly(orthoesters) and poly(anhydrides). Depot injectable formulations are prepared by entrapping the drug in liposomes or microemulsions which are compatible with body tissues.

Compositions for rectal or vaginal administration are typically suppositories which can be prepared by mixing compositions with suitable non-irritating excipients such as cocoa butter, polyethylene glycol or a suppository wax which are solid at ambient temperature but liquid at body temperature and therefore melt in the rectum or vaginal cavity and release the active ingredient.

Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules. In such solid dosage forms, an active ingredient is mixed with at least one inert, pharmaceutically acceptable excipient such as sodium citrate or dicalcium phosphate and/or fillers or extenders (e.g. starches, lactose, sucrose, glucose, mannitol, and silicic acid), binders (e.g. carboxymethylcellulose, alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia), humectants (e.g. glycerol), disintegrating agents (e.g. agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate), solution retarding agents (e.g. paraffin), absorption accelerators (e.g. quaternary ammonium compounds), wetting agents (e.g. cetyl alcohol and glycerol monostearate), absorbents (e.g. kaolin and bentonite clay), and lubricants (e.g. talc, calcium stearate, magnesium stearate, solid polyethylene glycols, sodium lauryl sulfate), and mixtures thereof. In the case of capsules, tablets and pills, the dosage form may comprise buffering agents.

Solid compositions of a similar type may be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols. Solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings and other coatings well known in the pharmaceutical formulating art. They may optionally comprise opacifying agents and can be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner. Examples of embedding compositions which can be used include polymeric substances and waxes. Solid compositions of a similar type may be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols.

Dosage forms for topical and/or transdermal administration of a composition may include ointments, pastes, creams, lotions, gels, powders, solutions, sprays, inhalants and/or patches. Generally, an active ingredient is admixed under sterile conditions with a pharmaceutically acceptable excipient and/or any needed preservatives and/or buffers as may be required. Additionally, the present disclosure contemplates the use of transdermal patches, which often have the added advantage of providing controlled delivery of a compound to the body. Such dosage forms may be prepared, for example, by dissolving and/or dispensing the compound in the proper medium. Alternatively or additionally, rate may be controlled by either providing a rate controlling membrane and/or by dispersing the compound in a polymer matrix and/or gel.

Suitable devices for use in delivering intradermal pharmaceutical compositions described herein include short needle devices such as those described in U.S. Pat. Nos. 4,886,499; 5,190,521; 5,328,483; 5,527,288; 4,270,537; 5,015,235; 5,141,496; and 5,417,662. Intradermal compositions may be administered by devices which limit the effective penetration length of a needle into the skin, such as those described in International Patent Publication No. WO 99/34850 and functional equivalents thereof. Jet injection devices which deliver liquid compositions to the dermis via a liquid jet injector and/or via a needle which pierces the stratum corneum and produces a jet which reaches the dermis are suitable. Jet injection devices are described, for example, in U.S. Pat. Nos. 5,480,381; 5,599,302; 5,334,144; 5,993,412; 5,649,912; 5,569,189; 5,704,911; 5,383,851; 5,893,397; 5,466,220; 5,339,163; 5,312,335; 5,503,627; 5,064,413; 5,520,639; 4,596,556; 4,790,824; 4,941,880; 4,940,460; and International Patent Publication No. WO 97/37705 and WO 97/13537. Ballistic powder/particle delivery devices which use compressed gas to accelerate vaccine in powder form through the outer layers of the skin to the dermis are suitable. Alternatively or additionally, conventional syringes may be used in the classical mantoux method of intradermal administration.

Formulations suitable for topical administration include, but are not limited to, liquid and/or semi liquid preparations such as liniments, lotions, oil in water and/or water in oil emulsions such as creams, ointments and/or pastes, and/or solutions and/or suspensions. Topically-administrable formulations may, for example, comprise from about 1% to about 10% (w/w) active ingredient, although the concentration of active ingredient may be as high as the solubility limit of the active ingredient in the solvent. Formulations for topical administration may further comprise one or more of the additional ingredients described herein.

A pharmaceutical composition may be prepared, packaged, and/or sold in a formulation suitable for pulmonary administration via the buccal cavity. Such a formulation may comprise dry particles which comprise the active ingredient and which have a diameter in the range from about 0.5 nm to about 7 nm or from about 1 nm to about 6 nm. Such compositions are conveniently in the form of dry powders for administration using a device comprising a dry powder reservoir to which a stream of propellant may be directed to disperse the powder and/or using a self propelling solvent/powder dispensing container such as a device comprising the active ingredient dissolved and/or suspended in a low-boiling propellant in a sealed container. Such powders comprise particles wherein at least 98% of the particles by weight have a diameter greater than 0.5 nm and at least 95% of the particles by number have a diameter less than 7 nm. Alternatively, at least 95% of the particles by weight have a diameter greater than 1 nm and at least 90% of the particles by number have a diameter less than 6 nm. Dry powder compositions may include a solid fine powder diluent such as sugar and are conveniently provided in a unit dose form.

Low boiling propellants generally include liquid propellants having a boiling point of below 65° F. at atmospheric pressure. Generally the propellant may constitute 50% to 99.9% (w/w) of the composition, and active ingredient may constitute 0.1% to 20% (w/w) of the composition. A propellant may further comprise additional ingredients such as a liquid non-ionic and/or solid anionic surfactant and/or a solid diluent (which may have a particle size of the same order as particles comprising the active ingredient).

Pharmaceutical compositions formulated for pulmonary delivery may provide an active ingredient in the form of droplets of a solution and/or suspension. Such formulations may be prepared, packaged, and/or sold as aqueous and/or dilute alcoholic solutions and/or suspensions, optionally sterile, comprising active ingredient, and may conveniently be administered using any nebulization and/or atomization device. Such formulations may further comprise one or more additional ingredients including, but not limited to, a flavoring agent such as saccharin sodium, a volatile oil, a buffering agent, a surface active agent, and/or a preservative such as methylhydroxybenzoate. Droplets provided by this route of administration may have an average diameter in the range from about 0.1 nm to about 200 nm.

Formulations described herein as being useful for pulmonary delivery are useful for intranasal delivery of a pharmaceutical composition. Another formulation suitable for intranasal administration is a coarse powder comprising the active ingredient and having an average particle from about 0.2 μm to 500 Such a formulation is administered in the manner in which snuff is taken, i.e. by rapid inhalation through the nasal passage from a container of the powder held close to the nose.

Formulations suitable for nasal administration may include from about as little as 0.1% (w/w) and as much as 100% (w/w) of active ingredient, and may include one or more of the additional ingredients described herein. A pharmaceutical composition may be prepared, packaged, and/or sold in a formulation suitable for buccal administration. Such formulations may, for example, be in the form of tablets and/or lozenges made using conventional methods, and may, for example, 0.1% to 20% (w/w) active ingredient, the balance including an orally dissolvable and/or degradable composition and, optionally, one or more of the additional ingredients described herein. Alternately, formulations suitable for buccal administration may include a powder and/or an aerosolized and/or atomized solution and/or suspension including active ingredient. Such powdered, aerosolized, and/or aerosolized formulations, when dispersed, may have an average particle and/or droplet size in the range from about 0.1 nm to about 200 nm, and may further include one or more of any additional ingredients described herein.

A pharmaceutical composition may be prepared, packaged, and/or sold in a formulation suitable for ophthalmic administration. Such formulations may, for example, be in the form of eye drops including, for example, a 0.1/1.0% (w/w) solution and/or suspension of the active ingredient in an aqueous or oily liquid excipient. Such drops may further comprise buffering agents, salts, and/or one or more other of any additional ingredients described herein. Other opthalmically-administrable formulations which are useful include those which comprise the active ingredient in microcrystalline form and/or in a liposomal preparation. Ear drops and/or eye drops are contemplated as being within the scope of this present disclosure.

General considerations in the formulation and/or manufacture of pharmaceutical agents may be found, for example, in Remington: The Science and Practice of Pharmacy 21^(st) ed., Lippincott Williams & Wilkins, 2005 (incorporated herein by reference).

Administration

The present disclosure provides methods comprising administering proteins or complexes in accordance with the present disclosure to a subject in need thereof. Proteins or complexes, or pharmaceutical, imaging, diagnostic, or prophylactic compositions thereof, may be administered to a subject using any amount and any route of administration effective for preventing, treating, diagnosing, or imaging a disease, disorder, and/or condition (e.g., a disease, disorder, and/or condition relating to working memory deficits). The exact amount required will vary from subject to subject, depending on the species, age, and general condition of the subject, the severity of the disease, the particular composition, its mode of administration, and its mode of activity. Compositions in accordance with the present disclosure are typically formulated in dosage unit form for ease of administration and uniformity of dosage. It will be understood, however, that the total daily usage of the compositions of the present disclosure will be decided by the attending physician within the scope of sound medical judgment. The specific therapeutically effective, prophylactically effective, or appropriate imaging dose level for any particular patient will depend upon a variety of factors including the disorder being treated and the severity of the disorder; the activity of the specific compound employed; the specific composition employed; the age, body weight, general health, sex and diet of the patient; the time of administration, route of administration, and rate of excretion of the specific compound employed; the duration of the treatment; drugs used in combination or coincidental with the specific compound employed; and like factors well known in the medical arts.

Proteins to be delivered and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof may be administered to animals, such as mammals (e.g., humans, domesticated animals, cats, dogs, mice, rats). In some embodiments, pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof are administered to humans.

Proteins to be delivered and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof in accordance with the present disclosure may be administered by any route. In some embodiments, proteins and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof, are administered by one or more of a variety of routes, including oral, intravenous, intramuscular, intra-arterial, intramedullary, intrathecal, subcutaneous, intraventricular, transdermal, interdermal, rectal, intravaginal, intraperitoneal, topical (e.g. by powders, ointments, creams, gels, lotions, and/or drops), mucosal, nasal, buccal, enteral, vitreal, intratumoral, sublingual; by intratracheal instillation, bronchial instillation, and/or inhalation; as an oral spray, nasal spray, and/or aerosol, and/or through a portal vein catheter. In some embodiments, proteins or complexes, and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof, are administered by systemic intravenous injection. In specific embodiments, proteins or complexes and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof may be administered intravenously and/or orally. In specific embodiments, proteins or complexes, and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof, may be administered in a way which allows the protein or complex to cross the blood-brain barrier, vascular barrier, or other epithelial barrier.

However, the present disclosure encompasses the delivery of proteins or complexes, and/or pharmaceutical, prophylactic, diagnostic, or imaging compositions thereof, by any appropriate route taking into consideration likely advances in the sciences of drug delivery.

In general the most appropriate route of administration will depend upon a variety of factors including the nature of the protein or complex comprising proteins associated with at least one agent to be delivered (e.g., its stability in the environment of the gastrointestinal tract, bloodstream), the condition of the patient (e.g., whether the patient is able to tolerate particular routes of administration). The present disclosure encompasses the delivery of the pharmaceutical, prophylactic, diagnostic, or imaging compositions by any appropriate route taking into consideration likely advances in the sciences of drug delivery.

In certain embodiments, compositions in accordance with the present disclosure may be administered at dosage levels sufficient to deliver from about 0.0001 mg/kg to about 100 mg/kg, from about 0.01 mg/kg to about 50 mg/kg, from about 0.1 mg/kg to about 40 mg/kg, from about 0.5 mg/kg to about 30 mg/kg, from about 0.01 mg/kg to about 10 mg/kg, from about 0.1 mg/kg to about 10 mg/kg, or from about 1 mg/kg to about 25 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic, diagnostic, prophylactic, or imaging effect. The desired dosage may be delivered three times a day, two times a day, once a day, every other day, every third day, every week, every two weeks, every three weeks, or every four weeks. In certain embodiments, the desired dosage may be delivered using multiple administrations (e.g., two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen, fourteen, or more administrations).

Proteins or complexes may be used in combination with one or more other therapeutic, prophylactic, diagnostic, or imaging agents. By “in combination with,” it is not intended to imply that the agents must be administered at the same time and/or formulated for delivery together, although these methods of delivery are within the scope of the present disclosure. Compositions can be administered concurrently with, prior to, or subsequent to, one or more other desired therapeutics or medical procedures. In general, each agent will be administered at a dose and/or on a time schedule determined for that agent. In some embodiments, the present disclosure encompasses the delivery of pharmaceutical, prophylactic, diagnostic, or imaging compositions in combination with agents that improve their bioavailability, reduce and/or modify their metabolism, inhibit their excretion, and/or modify their distribution within the body.

It will further be appreciated that therapeutically, prophylactically, diagnostically, or imaging active agents utilized in combination may be administered together in a single composition or administered separately in different compositions. In general, it is expected that agents utilized in combination with be utilized at levels that do not exceed the levels at which they are utilized individually. In some embodiments, the levels utilized in combination will be lower than those utilized individually.

The particular combination of therapies (therapeutics or procedures) to employ in a combination regimen will take into account compatibility of the desired therapeutics and/or procedures and the desired therapeutic effect to be achieved. It will also be appreciated that the therapies employed may achieve a desired effect for the same disorder (for example, a composition useful for treating cancer in accordance with the present disclosure may be administered concurrently with a chemotherapeutic agent), or they may achieve different effects (e.g., control of any adverse effects).

Kits

The present disclosure provides a variety of kits for conveniently and/or effectively carrying out methods of the present disclosure. Typically kits will comprise sufficient amounts and/or numbers of components to allow a user to perform multiple treatments of a subject(s) and/or to perform multiple experiments.

In one aspect, the disclosure provides kits for protein production, comprising a first isolated nucleic acid comprising a translatable region and a nucleic acid alteration, wherein the nucleic acid is capable of evading or avoiding induction of an innate immune response of a cell into which the first isolated nucleic acid is introduced, and packaging and instructions.

In one aspect, the disclosure provides kits for protein production, comprising: a first isolated alternative nucleic acid comprising a translatable region, provided in an amount effective to produce a desired amount of a protein encoded by the translatable region when introduced into a target cell; a second nucleic acid comprising an inhibitory nucleic acid, provided in an amount effective to substantially inhibit the innate immune response of the cell; and packaging and instructions.

In one aspect, the disclosure provides kits for protein production, comprising a first isolated nucleic acid comprising a translatable region and a nucleoside alteration, wherein the nucleic acid exhibits reduced degradation by a cellular nuclease, and packaging and instructions.

In one aspect, the disclosure provides kits for protein production, comprising a first isolated nucleic acid comprising a translatable region and at least two different nucleoside alterations, wherein the nucleic acid exhibits reduced degradation by a cellular nuclease, and packaging and instructions.

In one aspect, the disclosure provides kits for protein production, comprising a first isolated nucleic acid comprising a translatable region and at least one nucleoside alteration, wherein the nucleic acid exhibits reduced degradation by a cellular nuclease; a second nucleic acid comprising an inhibitory nucleic acid; and packaging and instructions.

In some embodiments, the first isolated nucleic acid comprises messenger RNA (mRNA). In some embodiments the mRNA comprises at least one nucleoside selected from the group consisting of 5-methoxy uridine, pyridin-4-one ribonucleoside, 5-aza-uridine, 2-thio-5-aza-uridine, 2-thiouridine, 4-thio-pseudouridine, 2-thio-pseudouridine, 5-hydroxyuridine, 3-methyluridine, 5-carboxymethyl-uridine, 1-carboxymethyl-pseudouridine, 5-propynyl-uridine, 1-propynyl-pseudouridine, 5-taurinomethyluridine, 1-taurinomethyl-pseudouridine, 5-taurinomethyl-2-thio-uridine, 1-taurinomethyl-4-thio-uridine, 5-methyl-uridine, 1-methyl-pseudouridine, 4-thio-1-methyl-pseudouridine, 2-thio-1-methyl-pseudouridine, 1-methyl-1-deaza-pseudouridine, 2-thio-1-methyl-1-deaza-pseudouridine, dihydrouridine, dihydropseudouridine, 2-thio-dihydrouridine, 2-thio-dihydropseudouridine, 2-methoxyuridine, 2-methoxy-4-thio-uridine, 4-methoxy-pseudouridine, 4-methoxy-2-thio-pseudouridine or any disclosed herein.

In some embodiments, the mRNA comprises at least one nucleoside selected from the group consisting of 5-methyl-cytidine, 5-aza-cytidine, pseudoisocytidine, 3-methyl-cytidine, N4-acetylcytidine, 5-formylcytidine, N4-methylcytidine, 5-hydroxymethylcytidine, 1-methyl-pseudoisocytidine, pyrrolo-cytidine, pyrrolo-pseudoisocytidine, 2-thio-cytidine, 2-thio-5-methyl-cytidine, 4-thio-pseudoisocytidine, 4-thio-1-methyl-pseudoisocytidine, 4-thio-1-methyl-1-deaza-pseudoisocytidine, 1-methyl-1-deaza-pseudoisocytidine, zebularine, 5-aza-zebularine, 5-methyl-zebularine, 5-aza-2-thio-zebularine, 2-thio-zebularine, 2-methoxy-cytidine, 2-methoxy-5-methyl-cytidine, 4-methoxy-pseudoisocytidine, 4-methoxy-1-methyl-pseudoisocytidine or any disclosed herein.

In some embodiments, the mRNA comprises at least one nucleoside selected from the group consisting of 2-aminopurine, 2, 6-diaminopurine, 7-deaza-adenine, 7-deaza-8-aza-adenine, 7-deaza-2-aminopurine, 7-deaza-8-aza-2-aminopurine, 7-deaza-2,6-diaminopurine, 7-deaza-8-aza-2,6-diaminopurine, 1-methyladenosine, N6-methyladenosine, N6-isopentenyladenosine, N6-(cis-hydroxyisopentenyl)adenosine, 2-methylthio-N6-(cis-hydroxyisopentenyl) adenosine, N6-glycinylcarbamoyladenosine, N6-threonylcarbamoyladenosine, 2-methylthio-N6-threonyl carbamoyladenosine, N6,N6-dimethyladenosine, 7-methyladenine, 2-methylthio-adenine, 2-methoxy-adenine or any disclosed herein.

In some embodiments, the mRNA comprises at least one nucleoside selected from the group consisting of inosine, 1-methyl-inosine, wyosine, wybutosine, 7-deaza-guanosine, 7-deaza-8-aza-guanosine, 6-thio-guanosine, 6-thio-7-deaza-guanosine, 6-thio-7-deaza-8-aza-guanosine, 7-methyl-guanosine, 6-thio-7-methyl-guanosine, 7-methylinosine, 6-methoxy-guanosine, 1-methylguanosine, N2-methylguanosine, N2,N2-dimethylguanosine, 8-oxo-guanosine, 7-methyl-8-oxo-guanosine, 1-methyl-6-thio-guanosine, N2-methyl-6-thio-guanosine, N2,N2-dimethyl-6-thio-guanosine or any disclosed herein.

In another aspect, the disclosure provides compositions for protein production, comprising a first isolated nucleic acid comprising a translatable region and a nucleoside alteration, wherein the nucleic acid exhibits reduced degradation by a cellular nuclease, and a mammalian cell suitable for translation of the translatable region of the first nucleic acid.

Definitions

At various places in the present specification, substituents of compounds of the present disclosure are disclosed in groups or in ranges. It is specifically intended that the present disclosure include each and every individual subcombination of the members of such groups and ranges. For example, the term “C₁₋₆ alkyl” is specifically intended to individually disclose methyl, ethyl, C₃ alkyl, C₄ alkyl, C₅ alkyl, and C₆ alkyl.

About: As used herein, the term “about” when used in the context of the amount of an alternative nucleobase or nucleoside in a polynucleic acid means +/−2.5% of the recited value. For example, a polynucleotide containing about 25% of an alternative uracil includes between 22.5-27.5% of the alternative uracil.

Administered in combination: As used herein, the term “administered in combination” or “combined administration” means that two or more agents are administered to a subject at the same time or within an interval such that there may be an overlap of an effect of each agent on the patient. In some embodiments, they are administered within about 60, 30, 15, 10, 5, or 1 minute of one another. In some embodiments, the administrations of the agents are spaced sufficiently closely together such that a combinatorial (e.g., a synergistic) effect is achieved.

Animal: As used herein, the term “animal” refers to any member of the animal kingdom. In some embodiments, “animal” refers to humans at any stage of development. In some embodiments, “animal” refers to non-human animals at any stage of development. In certain embodiments, the non-human animal is a mammal (e.g., a rodent, a mouse, a rat, a rabbit, a monkey, a dog, a cat, a sheep, cattle, a primate, or a pig). In some embodiments, animals include, but are not limited to, mammals, birds, reptiles, amphibians, fish, and worms. In some embodiments, the animal is a transgenic animal, genetically-engineered animal, or a clone.

Antigens of interest or desired antigens: As used herein, the terms “antigens of interest” or “desired antigens” include those proteins and other biomolecules provided herein that are immunospecifically bound by the antibodies and fragments, mutants, variants, and alterations thereof described herein. Examples of antigens of interest include, but are not limited to, insulin, insulin-like growth factor, hGH, tPA, cytokines, such as interleukins (IL), e.g., IL-1, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, IL-14, IL-15, IL-16, IL-17, IL-18, interferon (IFN) alpha, IFN beta, IFN gamma, IFN omega or IFN tau, tumor necrosis factor (TNF), such as TNF alpha and TNF beta, TNF gamma, TRAIL; G-CSF, GM-CSF, M-CSF, MCP-1 and VEGF.

Approximately: As used herein, the term “approximately” or “about,” as applied to one or more values of interest other than the amount of an alternative nucleobase or nucleoside in a polynucleic acid, refers to a value that is similar to a stated reference value. In certain embodiments, the term “approximately” or “about” refers to a range of values that fall within 25%, 20%, 19%, 18%, 17%, 16%, 15%, 14%, 13%, 12%, 11%, 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, or less in either direction (greater than or less than) of the stated reference value unless otherwise stated or otherwise evident from the context (except where such number would exceed 100% of a possible value).

Associated with: As used herein, the terms “associated with,” “conjugated,” “linked,” “attached,” and “tethered,” when used with respect to two or more moieties, means that the moieties are physically associated or connected with one another, either directly or via one or more additional moieties that serves as a linking agent, to form a structure that is sufficiently stable so that the moieties remain physically associated under the conditions in which the structure is used, e.g., physiological conditions. An “association” need not be strictly through direct covalent chemical bonding. It may also suggest ionic or hydrogen bonding or a hybridization based connectivity sufficiently stable such that the “associated” entities remain physically associated.

Biocompatible: As used herein, the term “biocompatible” means compatible with living cells, tissues, organs or systems posing little to no risk of injury, toxicity or rejection by the immune system.

Biodegradable: As used herein, the term “biodegradable” means capable of being broken down into innocuous products by the action of living things.

Biologically active: As used herein, the phrase “biologically active” refers to a characteristic of any substance that has activity in a biological system and/or organism. For instance, a substance that, when administered to an organism, has a biological effect on that organism, is considered to be biologically active. In particular embodiments, a polynucleotide of the present invention may be considered biologically active if even a portion of the polynucleotide is biologically active or mimics an activity considered biologically relevant.

Chemical terms: The following provides the definition of various chemical terms from “acyl” to “thiol.”

The term “acyl,” as used herein, represents a hydrogen or an alkyl group (e.g., a haloalkyl group), as defined herein, that is attached to the parent molecular group through a carbonyl group, as defined herein, and is exemplified by formyl (i.e., a carboxyaldehyde group), acetyl, trifluoroacetyl, propionyl, butanoyl and the like. Exemplary unsubstituted acyl groups include from 1 to 7, from 1 to 11, or from 1 to 21 carbons. In some embodiments, the alkyl group is further substituted with 1, 2, 3, or 4 substituents as described herein.

The term “acylamino,” as used herein, represents an acyl group, as defined herein, attached to the parent molecular group though an amino group, as defined herein (i.e., —N(R^(N1))—C(O)—R, where R is H or an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group (e.g., haloalkyl) and R^(N1) is as defined herein). Exemplary unsubstituted acylamino groups include from 1 to 41 carbons (e.g., from 1 to 7, from 1 to 13, from 1 to 21, from 2 to 7, from 2 to 13, from 2 to 21, or from 2 to 41 carbons). In some embodiments, the alkyl group is further substituted with 1, 2, 3, or 4 substituents as described herein, and/or the amino group is —NH₂ or —NHR^(N1), wherein R^(N1) is, independently, OH, NO₂, NH₂, NR^(N2) ₂, SO₂OR^(N2), SO₂R^(N2), SOR^(N2), alkyl, aryl, acyl (e.g., acetyl, trifluoroacetyl, or others described herein), or alkoxycarbonylalkyl, and each R^(N2) can be H, alkyl, or aryl.

The term “acylaminoalkyl,” as used herein, represents an acyl group, as defined herein, attached to an amino group that is in turn attached to the parent molecular group though an alkyl group, as defined herein (i.e., -alkyl-N(R^(N1))—C(O)—R, where R is H or an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group (e.g., haloalkyl) and R^(N1) is as defined herein). Exemplary unsubstituted acylamino groups include from 1 to 41 carbons (e.g., from 1 to 7, from 1 to 13, from 1 to 21, from 2 to 7, from 2 to 13, from 2 to 21, or from 2 to 41 carbons). In some embodiments, the alkyl group is further substituted with 1, 2, 3, or 4 substituents as described herein, and/or the amino group is —NH₂ or —NHR^(N1), wherein R^(N1) is, independently, OH, NO₂, NH₂, NR^(N2) ₂, SO₂OR^(N2), SO₂R^(N2), SOR^(N2), alkyl, aryl, acyl (e.g., acetyl, trifluoroacetyl, or others described herein), or alkoxycarbonylalkyl, and each R^(N2) can be H, alkyl, or aryl.

The term “acyloxy,” as used herein, represents an acyl group, as defined herein, attached to the parent molecular group though an oxygen atom (i.e., —O—C(O)—R, where R is H or an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group). Exemplary unsubstituted acyloxy groups include from 1 to 21 carbons (e.g., from 1 to 7 or from 1 to 11 carbons). In some embodiments, the alkyl group is further substituted with 1, 2, 3, or 4 substituents as described herein.

The term “acyloxyalkyl,” as used herein, represents an acyl group, as defined herein, attached to an oxygen atom that in turn is attached to the parent molecular group though an alkyl group (i.e., -alkyl-O—C(O)—R, where R is H or an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group). Exemplary unsubstituted acyloxyalkyl groups include from 1 to 21 carbons (e.g., from 1 to 7 or from 1 to 11 carbons). In some embodiments, the alkyl group is, independently, further substituted with 1, 2, 3, or 4 substituents as described herein.

The term “alkaryl,” as used herein, represents an aryl group, as defined herein, attached to the parent molecular group through an alkylene group, as defined herein. Exemplary unsubstituted alkaryl groups are from 7 to 30 carbons (e.g., from 7 to 16 or from 7 to 20 carbons, such as C₆₋₁₀ aryl C₁₋₆ alkyl, C₆₋₁₀ aryl C₁₋₁₀ alkyl, or C₆₋₁₀ aryl C₁₋₂₀ alkyl). In some embodiments, the alkylene and the aryl each can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for the respective groups.

The term “alkcycloalkyl” represents a cycloalkyl group, as defined herein, attached to the parent molecular group through an alkylene group, as defined herein (e.g., an alkylene group of from 1 to 4, from 1 to 6, from 1 to 10, or form 1 to 20 carbons). In some embodiments, the alkylene and the cycloalkyl each can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for the respective group.

The term “alkenyl,” as used herein, represents monovalent straight or branched chain groups of, unless otherwise specified, from 2 to 20 carbons (e.g., from 2 to 6 or from 2 to 10 carbons) containing one or more carbon-carbon double bonds and is exemplified by ethenyl, 1-propenyl, 2-propenyl, 2-methyl-1-propenyl, 1-butenyl, 2-butenyl, and the like. Alkenyls include both cis and trans isomers. Alkenyl groups may be optionally substituted with 1, 2, 3, or 4 substituent groups that are selected, independently, from amino, aryl, cycloalkyl, or heterocyclyl (e.g., heteroaryl), as defined herein, or any of the exemplary alkyl substituent groups described herein.

The term “alkenyloxy” represents a chemical substituent of formula —OR, where R is a C₂₋₂₀ alkenyl group (e.g., C₂₋₆ or C₂₋₁₀ alkenyl), unless otherwise specified. Exemplary alkenyloxy groups include ethenyloxy, propenyloxy, and the like. In some embodiments, the alkenyl group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein (e.g., a hydroxy group).

The term “alkheteroaryl” refers to a heteroaryl group, as defined herein, attached to the parent molecular group through an alkylene group, as defined herein. Exemplary unsubstituted alkheteroaryl groups are from 2 to 32 carbons (e.g., from 2 to 22, from 2 to 18, from 2 to 17, from 2 to 16, from 3 to 15, from 2 to 14, from 2 to 13, or from 2 to 12 carbons, such as C₁₋₁₂ heteroaryl C₁₋₆ alkyl, C₁₋₁₂ heteroaryl C₁₋₁₀ alkyl, or C₁₋₁₂ heteroaryl C₁₋₂₀ alkyl). In some embodiments, the alkylene and the heteroaryl each can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for the respective group. Alkheteroaryl groups are a subset of alkheterocyclyl groups.

The term “alkheterocyclyl” represents a heterocyclyl group, as defined herein, attached to the parent molecular group through an alkylene group, as defined herein. Exemplary unsubstituted alkheterocyclyl groups are from 2 to 32 carbons (e.g., from 2 to 22, from 2 to 18, from 2 to 17, from 2 to 16, from 3 to 15, from 2 to 14, from 2 to 13, or from 2 to 12 carbons, such as C₁₋₁₂ heterocyclyl C₁₋₆ alkyl, C₁₋₁₂ heterocyclyl C₁₋₁₀alkyl, or C₁₋₁₂ heterocyclyl C₁₋₂₀ alkyl). In some embodiments, the alkylene and the heterocyclyl each can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for the respective group.

The term “alkoxy” represents a chemical substituent of formula —OR, where R is a C₁₋₂₀ alkyl group (e.g., C₁₋₆ or C₁₋₁₀ alkyl), unless otherwise specified. Exemplary alkoxy groups include methoxy, ethoxy, propoxy (e.g., n-propoxy and isopropoxy), t-butoxy, and the like. In some embodiments, the alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein (e.g., hydroxy or alkoxy).

The term “alkoxyalkoxy” represents an alkoxy group that is substituted with an alkoxy group. Exemplary unsubstituted alkoxyalkoxy groups include between 2 to 40 carbons (e.g., from 2 to 12 or from 2 to 20 carbons, such as C₁₋₆ alkoxy-C₁₋₆ alkoxy, C₁₋₁₀ alkoxy-C₁₋₁₀ alkoxy, or C₁₋₂₀ alkoxy-C₁₋₂₀ alkoxy). In some embodiments, the each alkoxy group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein.

The term “alkoxyalkyl” represents an alkyl group that is substituted with an alkoxy group. Exemplary unsubstituted alkoxyalkyl groups include between 2 to 40 carbons (e.g., from 2 to 12 or from 2 to 20 carbons, such as C₁₋₆ alkoxy-C₁₋₆ alkyl, C₁₋₁₀ alkoxy-C₁₋₁₀ alkyl, or C₁₋₂₀ alkoxy-C₁₋₂₀ alkyl). In some embodiments, the alkyl and the alkoxy each can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for the respective group.

The term “alkoxycarbonyl,” as used herein, represents an alkoxy, as defined herein, attached to the parent molecular group through a carbonyl atom (e.g., —C(O)—OR, where R is H or an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group). Exemplary unsubstituted alkoxycarbonyl include from 1 to 21 carbons (e.g., from 1 to 11 or from 1 to 7 carbons). In some embodiments, the alkoxy group is further substituted with 1, 2, 3, or 4 substituents as described herein.

The term “alkoxycarbonylacyl,” as used herein, represents an acyl group, as defined herein, that is substituted with an alkoxycarbonyl group, as defined herein (e.g., —C(O)-alkyl-C(O)—OR, where R is an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group). Exemplary unsubstituted alkoxycarbonylacyl include from 3 to 41 carbons (e.g., from 3 to 10, from 3 to 13, from 3 to 17, from 3 to 21, or from 3 to 31 carbons, such as C₁₋₆ alkoxycarbonyl-C₁₋₆ acyl, C₁₋₁₀ alkoxycarbonyl-C₁₋₁₀ acyl, or C₁₋₂₀ alkoxycarbonyl-C₁₋₂₀ acyl). In some embodiments, each alkoxy and alkyl group is further independently substituted with 1, 2, 3, or 4 substituents, as described herein (e.g., a hydroxy group) for each group.

The term “alkoxycarbonylalkoxy,” as used herein, represents an alkoxy group, as defined herein, that is substituted with an alkoxycarbonyl group, as defined herein (e.g., —O-alkyl-C(O)—OR, where R is an optionally substituted C₁₋₆, C₁₋₁₀, or C₁₋₂₀ alkyl group). Exemplary unsubstituted alkoxycarbonylalkoxy include from 3 to 41 carbons (e.g., from 3 to 10, from 3 to 13, from 3 to 17, from 3 to 21, or from 3 to 31 carbons, such as C₁₋₆ alkoxycarbonyl-C₁₋₆ alkoxy, C₁₋₁₀ alkoxycarbonyl-C₁₋₁₀ alkoxy, or C₁₋₂₀ alkoxycarbonyl-C₁₋₂₀ alkoxy). In some embodiments, each alkoxy group is further independently substituted with 1, 2, 3, or 4 substituents, as described herein (e.g., a hydroxy group).

The term “alkoxycarbonylalkyl,” as used herein, represents an alkyl group, as defined herein, that is substituted with an alkoxycarbonyl group, as defined herein (e.g., -alkyl-C(O)—OR, where R is an optionally substituted C₁₋₂₀, C₁₋₁₀, or C₁₋₆ alkyl group). Exemplary unsubstituted alkoxycarbonylalkyl include from 3 to 41 carbons (e.g., from 3 to 10, from 3 to 13, from 3 to 17, from 3 to 21, or from 3 to 31 carbons, such as C₁₋₆ alkoxycarbonyl-C₁₋₆ alkyl, C₁₋₁₀ alkoxycarbonyl-C₁₋₁₀ alkyl, or C₁₋₂₀ alkoxycarbonyl-C₁₋₂₀ alkyl). In some embodiments, each alkyl and alkoxy group is further independently substituted with 1, 2, 3, or 4 substituents as described herein (e.g., a hydroxy group).

The term “alkoxycarbonylalkenyl,” as used herein, represents an alkenyl group, as defined herein, that is substituted with an alkoxycarbonyl group, as defined herein (e.g., -alkenyl-C(O)—OR, where R is an optionally substituted C₁₋₂₀, C₁₋₁₀, or C₁₋₆ alkyl group). Exemplary unsubstituted alkoxycarbonylalkenyl include from 4 to 41 carbons (e.g., from 4 to 10, from 4 to 13, from 4 to 17, from 4 to 21, or from 4 to 31 carbons, such as C₁₋₆ alkoxycarbonyl-C₂₋₆ alkenyl, C₁₋₁₀ alkoxycarbonyl-C₂₋₁₀ alkenyl, or C₁₋₂₀ alkoxycarbonyl-C₂₋₂₀ alkenyl). In some embodiments, each alkyl, alkenyl, and alkoxy group is further independently substituted with 1, 2, 3, or 4 substituents as described herein (e.g., a hydroxy group).

The term “alkoxycarbonylalkynyl,” as used herein, represents an alkynyl group, as defined herein, that is substituted with an alkoxycarbonyl group, as defined herein (e.g., -alkynyl-C(O)—OR, where R is an optionally substituted C₁₋₂₀, C₁₋₁₀, or C₁₋₆ alkyl group). Exemplary unsubstituted alkoxycarbonylalkynyl include from 4 to 41 carbons (e.g., from 4 to 10, from 4 to 13, from 4 to 17, from 4 to 21, or from 4 to 31 carbons, such as C₁₋₆ alkoxycarbonyl-C₂₋₆ alkynyl, C₁₋₁₀ alkoxycarbonyl-C₂₋₁₀ alkynyl, or C₁₋₂₀ alkoxycarbonyl-C₂₋₂₀ alkynyl). In some embodiments, each alkyl, alkynyl, and alkoxy group is further independently substituted with 1, 2, 3, or 4 substituents as described herein (e.g., a hydroxy group).

The term “alkyl,” as used herein, is inclusive of both straight chain and branched chain saturated groups from 1 to 20 carbons (e.g., from 1 to 10 or from 1 to 6), unless otherwise specified. Alkyl groups are exemplified by methyl, ethyl, n- and iso-propyl, n-, sec-, iso- and tert-butyl, neopentyl, and the like, and may be optionally substituted with one, two, three, or, in the case of alkyl groups of two carbons or more, four substituents independently selected from the group consisting of: (1) C₁₋₆ alkoxy; (2) C₁₋₆ alkylsulfinyl; (3) amino, as defined herein (e.g., unsubstituted amino (i.e., —NH₂) or a substituted amino (i.e., —N(R^(N1))₂, where R^(N1) is as defined for amino); (4) C₆₋₁₀ aryl-C₁₋₆ alkoxy; (5) azido; (6) halo; (7) (C₂₋₉ heterocyclyl)oxy; (8) hydroxy, optionally substituted with an 0-protecting group; (9) nitro; (10) oxo (e.g., carboxyaldehyde or acyl); (11) C₁₋₇ spirocyclyl; (12) thioalkoxy; (13) thiol; (14) —CO₂R^(A′), optionally substituted with an O-protecting group and where R^(A′) is selected from the group consisting of (a) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c) C₆₋₁₀ aryl, (d) hydrogen, (e) C₆₋₁₀ aryl C₁₋₆ alkyl, (f) amino-C₁₋₂₀ alkyl, (g) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (15) —C(O)NR^(B′)R^(C′), where each of R^(B′) and R^(C′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (16) —SO₂R^(D′), where R is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) C₆₋₁₀ aryl C₁-6 alkyl, and (d) hydroxy; (17) —SO₂NR^(E′)R^(F′), where each of R^(E′) and R^(F′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (18) —C(O)R^(G′), where R^(G′) is selected from the group consisting of (a) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c) C₆₋₁₀ aryl, (d) hydrogen, (e) C₆₋₁₀ aryl C₁₋₆ alkyl, (f) amino-C₁₋₂₀ alkyl, (g) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (19) —NR^(H′)C(O)R^(I′), wherein R^(H′) is selected from the group consisting of (a1) hydrogen and (b1) C₁₋₆ alkyl, and R^(I′) is selected from the group consisting of (a2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b2) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c2) C₆₋₁₀ aryl, (d2) hydrogen, (e2) C₆₋₁₀ aryl C₁₋₆ alkyl, (f2) amino-C₁₋₂₀ alkyl, (g2) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h2) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (20) —NR^(J′)C(O)OR^(K′), wherein R^(J′) is selected from the group consisting of (a1) hydrogen and (b1) C₁₋₆ alkyl, and R^(K′) is selected from the group consisting of (a2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b2) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c2) C₆₋₁₀ aryl, (d2) hydrogen, (e2) C₆₋₁₀ aryl C₁₋₆ alkyl, (f2) amino-C₁₋₂₀ alkyl, (g2) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h2) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; and (21) amidine. In some embodiments, each of these groups can be further substituted as described herein. For example, the alkylene group of a C₁-alkaryl can be further substituted with an oxo group to afford the respective aryloyl substituent.

The term “alkylene” as used herein, represent a saturated divalent hydrocarbon group derived from a straight or branched chain saturated hydrocarbon by the removal of two hydrogen atoms, and is exemplified by methylene, ethylene, isopropylene, and the like. The term “C_(x-y) alkylene” represent alkylene groups having between x and y carbons. Exemplary values for x are 1, 2, 3, 4, 5, and 6, and exemplary values for y are 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, or 20 (e.g., C₁₋₆, C₁₋₁₀, C₂₋₂₀, C₂₋₆, C₂₋₁₀, or C₂₋₂₀ alkylene). In some embodiments, the alkylene can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein for an alkyl group.

The term “alkylsulfinyl,” as used herein, represents an alkyl group attached to the parent molecular group through an —S(O)— group. Exemplary unsubstituted alkylsulfinyl groups are from 1 to 6, from 1 to 10, or from 1 to 20 carbons. In some embodiments, the alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein.

The term “alkylsulfinylalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by an alkylsulfinyl group. Exemplary unsubstituted alkylsulfinylalkyl groups are from 2 to 12, from 2 to 20, or from 2 to 40 carbons. In some embodiments, each alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein.

The term “alkynyl,” as used herein, represents monovalent straight or branched chain groups from 2 to 20 carbon atoms (e.g., from 2 to 4, from 2 to 6, or from 2 to 10 carbons) containing a carbon-carbon triple bond and is exemplified by ethynyl, 1-propynyl, and the like. Alkynyl groups may be optionally substituted with 1, 2, 3, or 4 substituent groups that are selected, independently, from aryl, cycloalkyl, or heterocyclyl (e.g., heteroaryl), as defined herein, or any of the exemplary alkyl substituent groups described herein.

The term “alkynyloxy” represents a chemical substituent of formula —OR, where R is a C₂₋₂₀ alkynyl group (e.g., C₂₋₆ or C₂₋₁₀ alkynyl), unless otherwise specified. Exemplary alkynyloxy groups include ethynyloxy, propynyloxy, and the like. In some embodiments, the alkynyl group can be further substituted with 1, 2, 3, or 4 substituent groups as defined herein (e.g., a hydroxy group).

The term “amidine,” as used herein, represents a —C(═NH)NH₂ group.

The term “amino,” as used herein, represents —N(R^(N1))₂, wherein each R^(N1) is, independently, H, OH, NO₂, N(R^(N2))₂, SO₂OR^(N2), SO₂R^(N2), SOR^(N2), an N-protecting group, alkyl, alkenyl, alkynyl, alkoxy, aryl, alkaryl, cycloalkyl, alkcycloalkyl, carboxyalkyl (e.g., optionally substituted with an O-protecting group, such as optionally substituted arylalkoxycarbonyl groups or any described herein), sulfoalkyl, acyl (e.g., acetyl, trifluoroacetyl, or others described herein), alkoxycarbonylalkyl (e.g., optionally substituted with an O-protecting group, such as optionally substituted arylalkoxycarbonyl groups or any described herein), heterocyclyl (e.g., heteroaryl), or alkheterocyclyl (e.g., alkheteroaryl), wherein each of these recited R^(N1) groups can be optionally substituted, as defined herein for each group; or two R^(N1) combine to form a heterocyclyl or an N-protecting group, and wherein each R^(N2) is, independently, H, alkyl, or aryl. The amino groups of the invention can be an unsubstituted amino (i.e., —NH₂) or a substituted amino (i.e., —N(R^(N1))₂). In a preferred embodiment, amino is —NH₂ or —NHR^(N1), wherein R^(N1) is, independently, OH, NO₂, NH₂, NR^(N2) ₂, SO₂OR^(N2), SO₂R^(N2), SOR^(N2), alkyl, carboxyalkyl, sulfoalkyl, acyl (e.g., acetyl, trifluoroacetyl, or others described herein), alkoxycarbonylalkyl (e.g., t-butoxycarbonylalkyl) or aryl, and each R^(N2) can be H, C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), or C₆₋₁₀ aryl.

The term “amino acid,” as described herein, refers to a molecule having a side chain, an amino group, and an acid group (e.g., a carboxy group of —CO₂H or a sulfo group of —SO₃H), wherein the amino acid is attached to the parent molecular group by the side chain, amino group, or acid group (e.g., the side chain). In some embodiments, the amino acid is attached to the parent molecular group by a carbonyl group, where the side chain or amino group is attached to the carbonyl group. Exemplary side chains include an optionally substituted alkyl, aryl, heterocyclyl, alkaryl, alkheterocyclyl, aminoalkyl, carbamoylalkyl, and carboxyalkyl. Exemplary amino acids include alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, hydroxynorvaline, isoleucine, leucine, lysine, methionine, norvaline, ornithine, phenylalanine, proline, pyrrolysine, selenocysteine, serine, taurine, threonine, tryptophan, tyrosine, and valine. Amino acid groups may be optionally substituted with one, two, three, or, in the case of amino acid groups of two carbons or more, four substituents independently selected from the group consisting of: (1) C₁₋₆ alkoxy; (2) C₁₋₆ alkylsulfinyl; (3) amino, as defined herein (e.g., unsubstituted amino (i.e., —NH₂) or a substituted amino (i.e., —N(R^(N1))₂, where R^(N1) is as defined for amino); (4) C₆₋₁₀ aryl-C₁₋₆ alkoxy; (5) azido; (6) halo; (7) (C₂₋₉ heterocyclyl)oxy; (8) hydroxy; (9) nitro; (10) oxo (e.g., carboxyaldehyde or acyl); (11) C₁₋₇ spirocyclyl; (12) thioalkoxy; (13) thiol; (14) —CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c) C₆₋₁₀ aryl, (d) hydrogen, (e) C₆₋₁₀ aryl C₁₋₆ alkyl, (f) amino-C₁₋₂₀ alkyl, (g) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (15) —C(O)NR^(B′)R^(C′), where each of R^(B′) and R^(C′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (16) —SO₂R^(D′), where R^(D′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) C₆₋₁₀ aryl C₁₋₆ alkyl, and (d) hydroxy; (17) —SO₂NR^(E′)R^(F′), where each of R^(E′) and R^(F′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (18) —C(O)R^(G′), where R^(G′) is selected from the group consisting of (a) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c) C₆₋₁₀ aryl, (d) hydrogen, (e) C₆₋₁₀ aryl C₁₋₆ alkyl, (f) amino-C₁₋₂₀ alkyl, (g) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (19) —NR^(H′)C(O)R^(I′), wherein R^(H′) is selected from the group consisting of (a1) hydrogen and (b1) C₁₋₆ alkyl, and R^(I′) is selected from the group consisting of (a2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b2) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c2) C₆₋₁₀ aryl, (d2) hydrogen, (e2) C₆₋₁₀ aryl C₁₋₆ alkyl, (f2) amino-C₁₋₂₀ alkyl, (g2) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein S1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h2) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; (20) —NR^(J′)C(O)OR^(K′), wherein R^(J′) is selected from the group consisting of (a1) hydrogen and (b1) C₁₋₆ alkyl, and R^(K′) is selected from the group consisting of (a2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl), (b2) C₂₋₂₀ alkenyl (e.g., C₂₋₆ alkenyl), (c2) C₆₋₁₀ aryl, (d2) hydrogen, (e2) C₆₋₁₀ aryl C₁₋₆ alkyl, (f2) amino-C₁₋₂₀ alkyl, (g2) polyethylene glycol of —(CH₂)_(s2)(OCH₂CH₂)_(s1)(CH₂)_(s3)OR′, wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and R′ is H or C₁₋₂₀ alkyl, and (h2) amino-polyethylene glycol of —NR^(N1)(CH₂)_(s2)(CH₂CH₂O)_(s1)(CH₂)_(s3)NR^(N1), wherein s1 is an integer from 1 to 10 (e.g., from 1 to 6 or from 1 to 4), each of s2 and s3, independently, is an integer from 0 to 10 (e.g., from 0 to 4, from 0 to 6, from 1 to 4, from 1 to 6, or from 1 to 10), and each R^(N1) is, independently, hydrogen or optionally substituted C₁₋₆ alkyl; and (21) amidine. In some embodiments, each of these groups can be further substituted as described herein.

The term “aminoalkoxy,” as used herein, represents an alkoxy group, as defined herein, substituted by an amino group, as defined herein. The alkyl and amino each can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the respective group (e.g., CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl, e.g., carboxy).

The term “aminoalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by an amino group, as defined herein. The alkyl and amino each can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the respective group (e.g., CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl, e.g., carboxy, and/or an N-protecting group).

The term “aminoalkenyl,” as used herein, represents an alkenyl group, as defined herein, substituted by an amino group, as defined herein. The alkenyl and amino each can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the respective group (e.g., CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl, e.g., carboxy, and/or an N-protecting group).

The term “aminoalkynyl,” as used herein, represents an alkynyl group, as defined herein, substituted by an amino group, as defined herein. The alkynyl and amino each can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the respective group (e.g., CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl, e.g., carboxy, and/or an N-protecting group).

The term “aryl,” as used herein, represents a mono-, bicyclic, or multicyclic carbocyclic ring system having one or two aromatic rings and is exemplified by phenyl, naphthyl, 1,2-dihydronaphthyl, 1,2,3,4-tetrahydronaphthyl, anthracenyl, phenanthrenyl, fluorenyl, indanyl, indenyl, and the like, and may be optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from the group consisting of: (1) C₁₋₇ acyl (e.g., carboxyaldehyde); (2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl, C₁₋₆ alkoxy-C₁₋₆ alkyl, C₁₋₆ alkylsulfinyl-C₁₋₆ alkyl, amino-C₁₋₆ alkyl, azido-C₁₋₆ alkyl, (carboxyaldehyde)-C₁₋₆ alkyl, halo-C₁₋₆ alkyl (e.g., perfluoroalkyl), hydroxy-C₁₋₆ alkyl, nitro-C₁₋₆ alkyl, or C₁₋₆ thioalkoxy-C₁₋₆ alkyl); (3) C₁₋₂₀ alkoxy (e.g., C₁₋₆ alkoxy, such as perfluoroalkoxy); (4) C₁₋₆ alkylsulfinyl; (5) C₆₋₁₀ aryl; (6) amino; (7) C₆₋₁₀ aryl C₁₋₆ alkyl; (8) azido; (9) C₃₋₈ cycloalkyl; (10) C₃₋₈ cycloalkyl C₁₋₆ alkyl; (11) halo; (12) C₁₋₁₂ heterocyclyl (e.g., C₁₋₁₂ heteroaryl); (13) (C₁₋₁₂ heterocyclyl)oxy; (14) hydroxy; (15) nitro; (16) C₁₋₂₀ thioalkoxy (e.g., C₁₋₆ thioalkoxy); (17) —(CH₂)_(q)CO₂R^(A), where q is an integer from zero to four, and R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (18) —(CH₂)_(q)CONR^(B′)R^(C′), where q is an integer from zero to four and where R^(B′) and R^(C′) are independently selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (19) —(CH₂)_(q)SO₂R^(D′), where q is an integer from zero to four and where R^(D′) is selected from the group consisting of (a) alkyl, (b) C₆₋₁₀ aryl, and (c) C₆₋₁₀ aryl alkyl; (20) —(CH₂)_(q)SO₂NR^(E′)R^(F′), where q is an integer from zero to four and where each of R^(E′) and R^(F′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (21) thiol; (22) C₆₋₁₀ aryloxy; (23) C₃₋₈ cycloalkoxy; (24) C₆₋₁₀ aryl-C₁₋₆ alkoxy; (25) C₁₋₁₂ heterocyclyl C₁₋₆ alkyl (e.g., C₁₋₁₂ heteroaryl C₁₋₆ alkyl); (26) C₂₋₂₀ alkenyl; and (27) C₂₋₂₀ alkynyl. In some embodiments, each of these groups can be further substituted as described herein. For example, the alkylene group of a C₁-alkaryl or a C₁-alkheterocyclyl can be further substituted with an oxo group to afford the respective aryloyl and (heterocyclyl)oyl substituent group.

The term “arylalkoxy,” as used herein, represents an alkaryl group, as defined herein, attached to the parent molecular group through an oxygen atom. Exemplary unsubstituted arylalkoxy groups include from 7 to 30 carbons (e.g., from 7 to 16 or from 7 to 20 carbons, such as C₅₋₁₀ aryl-C₁₋₆ alkoxy, C₆₋₁₀ aryl-C₁₋₁₀ alkoxy, or C₆₋₁₀ aryl-C₁₋₂₀ alkoxy). In some embodiments, the arylalkoxy group can be substituted with 1, 2, 3, or 4 substituents as defined herein

The term “arylalkoxycarbonyl,” as used herein, represents an arylalkoxy group, as defined herein, attached to the parent molecular group through a carbonyl (e.g., —C(O)—O-alkyl-aryl). Exemplary unsubstituted arylalkoxy groups include from 8 to 31 carbons (e.g., from 8 to 17 or from 8 to 21 carbons, such as C₆₋₁₀ aryl-C₁₋₆ alkoxy-carbonyl, C₆₋₁₀ aryl-C₁₋₁₀ alkoxy-carbonyl, or C₆₋₁₀ aryl-C₁₋₂₀ alkoxy-carbonyl). In some embodiments, the arylalkoxycarbonyl group can be substituted with 1, 2, 3, or 4 substituents as defined herein.

The term “aryloxy” represents a chemical substituent of formula —OR′, where R′ is an aryl group of 6 to 18 carbons, unless otherwise specified. In some embodiments, the aryl group can be substituted with 1, 2, 3, or 4 substituents as defined herein.

The term “aryloyl,” as used herein, represents an aryl group, as defined herein, that is attached to the parent molecular group through a carbonyl group. Exemplary unsubstituted aryloyl groups are of 7 to 11 carbons. In some embodiments, the aryl group can be substituted with 1, 2, 3, or 4 substituents as defined herein.

The term “azido” represents an —N₃ group, which can also be represented as —N═N=N.

The term “bicyclic,” as used herein, refer to a structure having two rings, which may be aromatic or non-aromatic. Bicyclic structures include spirocyclyl groups, as defined herein, and two rings that share one or more bridges, where such bridges can include one atom or a chain including two, three, or more atoms. Exemplary bicyclic groups include a bicyclic carbocyclyl group, where the first and second rings are carbocyclyl groups, as defined herein; a bicyclic aryl groups, where the first and second rings are aryl groups, as defined herein; bicyclic heterocyclyl groups, where the first ring is a heterocyclyl group and the second ring is a carbocyclyl (e.g., aryl) or heterocyclyl (e.g., heteroaryl) group; and bicyclic heteroaryl groups, where the first ring is a heteroaryl group and the second ring is a carbocyclyl (e.g., aryl) or heterocyclyl (e.g., heteroaryl) group. In some embodiments, the bicyclic group can be substituted with 1, 2, 3, or 4 substituents as defined herein for cycloalkyl, heterocyclyl, and aryl groups.

The term “boranyl,” as used herein, represents —B(R^(B1))₃, where each R^(B1) is, independently, selected from the group consisting of H and optionally substituted alkyl. In some embodiments, the boranyl group can be substituted with 1, 2, 3, or 4 substituents as defined herein for alkyl.

The terms “carbocyclic” and “carbocyclyl,” as used herein, refer to an optionally substituted C₃₋₁₂ monocyclic, bicyclic, or tricyclic structure in which the rings, which may be aromatic or non-aromatic, are formed by carbon atoms. Carbocyclic structures include cycloalkyl, cycloalkenyl, and aryl groups.

The term “carbamoyl,” as used herein, represents —C(O)—N(R^(N1))₂, where the meaning of each R^(N1) is found in the definition of “amino” provided herein.

The term “carbamoylalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by a carbamoyl group, as defined herein. The alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein.

The term “carbamyl,” as used herein, refers to a carbamate group having the structure —NR^(N1)C(═O)OR or —OC(═O)N(R^(N1))₂, where the meaning of each R^(N1) is found in the definition of “amino” provided herein, and R is alkyl, cycloalkyl, alkcycloalkyl, aryl, alkaryl, heterocyclyl (e.g., heteroaryl), or alkheterocyclyl (e.g., alkheteroaryl), as defined herein.

The term “carbonyl,” as used herein, represents a C(O) group, which can also be represented as C═O.

The term “carboxyaldehyde” represents an acyl group having the structure —CHO.

The term “carboxy,” as used herein, means —CO₂H.

The term “carboxyalkoxy,” as used herein, represents an alkoxy group, as defined herein, substituted by a carboxy group, as defined herein. The alkoxy group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the alkyl group, and the carboxy group can be optionally substituted with one or more O-protecting groups.

The term “carboxyalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by a carboxy group, as defined herein. The alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein, and the carboxy group can be optionally substituted with one or more O-protecting groups.

The term “carboxyaminoalkyl,” as used herein, represents an aminoalkyl group, as defined herein, substituted by a carboxy, as defined herein. The carboxy, alkyl, and amino each can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for the respective group (e.g., CO₂R^(A′), where R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl, e.g., carboxy, and/or an N-protecting group, and/or an 0-protecting group).

The term “cyano,” as used herein, represents an —CN group.

The term “cycloalkoxy” represents a chemical substituent of formula —OR, where R is a C₃₋₈ cycloalkyl group, as defined herein, unless otherwise specified. The cycloalkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein. Exemplary unsubstituted cycloalkoxy groups are from 3 to 8 carbons. In some embodiment, the cycloalkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein.

The term “cycloalkyl,” as used herein represents a monovalent saturated or unsaturated non-aromatic cyclic hydrocarbon group from three to eight carbons, unless otherwise specified, and is exemplified by cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, bicycle heptyl, and the like. When the cycloalkyl group includes one carbon-carbon double bond, the cycloalkyl group can be referred to as a “cycloalkenyl” group. Exemplary cycloalkenyl groups include cyclopentenyl, cyclohexenyl, and the like. The cycloalkyl groups of this invention can be optionally substituted with: (1) C₁₋₇ acyl (e.g., carboxyaldehyde); (2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl, C₁₋₆ alkoxy-C₁₋₆ alkyl, C₁₋₆ alkylsulfinyl-C₁₋₆ alkyl, amino-C₁₋₆ alkyl, azido-C₁₋₆ alkyl, (carboxyaldehyde)-C₁₋₆ alkyl, halo-C₁₋₆ alkyl (e.g., perfluoroalkyl), hydroxy-C₁₋₆ alkyl, nitro-C₁₋₆ alkyl, or C₁₋₆ thioalkoxy-C₁₋₆ alkyl); (3) C₁₋₂₀ alkoxy (e.g., C₁₋₆ alkoxy, such as perfluoroalkoxy); (4) C₁₋₆ alkylsulfinyl; (5) C₆₋₁₀ aryl; (6) amino; (7) C₆₋₁₀ aryl C₁₋₆ alkyl; (8) azido; (9) C₃₋₈ cycloalkyl; (10) C₃₋₈ cycloalkyl C₁₋₆ alkyl; (11) halo; (12) C₁₋₁₂ heterocyclyl (e.g., C₁₋₁₂ heteroaryl); (13) (C₁₋₁₂ heterocyclyl)oxy; (14) hydroxy; (15) nitro; (16) C₁₋₂₀ thioalkoxy (e.g., C₁₋₆ thioalkoxy); (17) —(CH₂)_(q)CO₂R^(A′), where q is an integer from zero to four, and R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (18) —(CH₂)_(q)CONR^(B′)R^(C′), where q is an integer from zero to four and where R^(B′) and R^(C′) are independently selected from the group consisting of (a) hydrogen, (b) C₆₋₁₀ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (19) —(CH₂)_(q)SO₂R^(D′), where q is an integer from zero to four and where R^(D′) is selected from the group consisting of (a) C₆₋₁₀ alkyl, (b) C₆₋₁₀ aryl, and (c) C₆₋₁₀ aryl C₁₋₆ alkyl; (20) —(CH₂)_(q)SO₂NR^(E′)R^(F′), where q is an integer from zero to four and where each of R^(E′) and R^(F′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₆₋₁₀ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (21) thiol; (22) C₆₋₁₀ aryloxy; (23) C₃₋₈ cycloalkoxy; (24) C₆₋₁₀ aryl-C₁₋₆ alkoxy; (25) C₁₋₁₂ heterocyclyl C₁₋₆ alkyl (e.g., C₁₋₁₂ heteroaryl C₁₋₆ alkyl); (26) oxo; (27) C₂₋₂₀ alkenyl; and (28) C₂₋₂₀ alkynyl. In some embodiments, each of these groups can be further substituted as described herein. For example, the alkylene group of a C₁-alkaryl or a C₁-alkheterocyclyl can be further substituted with an oxo group to afford the respective aryloyl and (heterocyclyl)oyl substituent group.

The term “diastereomer,” as used herein means stereoisomers that are not mirror images of one another and are non-superimposable on one another.

The term “effective amount” of an agent, as used herein, is that amount sufficient to effect beneficial or desired results, for example, clinical results, and, as such, an “effective amount” depends upon the context in which it is being applied. For example, in the context of administering an agent that treats cancer, an effective amount of an agent is, for example, an amount sufficient to achieve treatment, as defined herein, of cancer, as compared to the response obtained without administration of the agent.

The term “enantiomer,” as used herein, means each individual optically active form of a compound of the invention, having an optical purity or enantiomeric excess (as determined by methods standard in the art) of at least 80% (i.e., at least 90% of one enantiomer and at most 10% of the other enantiomer), preferably at least 90% and more preferably at least 98%.

The term “halo,” as used herein, represents a halogen selected from bromine, chlorine, iodine, or fluorine.

The term “haloalkoxy,” as used herein, represents an alkoxy group, as defined herein, substituted by a halogen group (i.e., F, Cl, Br, or I). A haloalkoxy may be substituted with one, two, three, or, in the case of alkyl groups of two carbons or more, four halogens. Haloalkoxy groups include perfluoroalkoxys (e.g., —OCF₃), —OCHF₂, —OCH₂F, —OCCl₃, —OCH₂CH₂Br, —OCH₂CH(CH₂CH₂Br)CH₃, and —OCHICH₃. In some embodiments, the haloalkoxy group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for alkyl groups.

The term “haloalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by a halogen group (i.e., F, Cl, Br, or I). A haloalkyl may be substituted with one, two, three, or, in the case of alkyl groups of two carbons or more, four halogens. Haloalkyl groups include perfluoroalkyls (e.g., —CF₃), —CHF₂, —CH₂F, —CCl₃, —CH₂CH₂Br, —CH₂CH(CH₂CH₂Br)CH₃, and —CHICH₃. In some embodiments, the haloalkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for alkyl groups.

The term “heteroalkylene,” as used herein, refers to an alkylene group, as defined herein, in which one or two of the constituent carbon atoms have each been replaced by nitrogen, oxygen, or sulfur. In some embodiments, the heteroalkylene group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein for alkylene groups.

The term “heteroaryl,” as used herein, represents that subset of heterocyclyls, as defined herein, which are aromatic: i.e., they contain 4n+2 pi electrons within the mono- or multicyclic ring system. Exemplary unsubstituted heteroaryl groups are of 1 to 12 (e.g., 1 to 11, 1 to 10, 1 to 9, 2 to 12, 2 to 11, 2 to 10, or 2 to 9) carbons. In some embodiment, the heteroaryl is substituted with 1, 2, 3, or 4 substituents groups as defined for a heterocyclyl group.

The term “heterocyclyl,” as used herein represents a 5-, 6- or 7-membered ring, unless otherwise specified, containing one, two, three, or four heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. The 5-membered ring has zero to two double bonds, and the 6- and 7-membered rings have zero to three double bonds. Exemplary unsubstituted heterocyclyl groups are of 1 to 12 (e.g., 1 to 11, 1 to 10, 1 to 9, 2 to 12, 2 to 11, 2 to 10, or 2 to 9) carbons. The term “heterocyclyl” also represents a heterocyclic compound having a bridged multicyclic structure in which one or more carbons and/or heteroatoms bridges two non-adjacent members of a monocyclic ring, e.g., a quinuclidinyl group. The term “heterocyclyl” includes bicyclic, tricyclic, and tetracyclic groups in which any of the above heterocyclic rings is fused to one, two, or three carbocyclic rings, e.g., an aryl ring, a cyclohexane ring, a cyclohexene ring, a cyclopentane ring, a cyclopentene ring, or another monocyclic heterocyclic ring, such as indolyl, quinolyl, isoquinolyl, tetrahydroquinolyl, benzofuryl, benzothienyl and the like. Examples of fused heterocyclyls include tropanes and 1,2,3,5,8,8α-hexahydroindolizine. Heterocyclics include pyrrolyl, pyrrolinyl, pyrrolidinyl, pyrazolyl, pyrazolinyl, pyrazolidinyl, imidazolyl, imidazolinyl, imidazolidinyl, pyridyl, piperidinyl, homopiperidinyl, pyrazinyl, piperazinyl, pyrimidinyl, pyridazinyl, oxazolyl, oxazolidinyl, isoxazolyl, isoxazolidiniyl, morpholinyl, thiomorpholinyl, thiazolyl, thiazolidinyl, isothiazolyl, isothiazolidinyl, indolyl, indazolyl, quinolyl, isoquinolyl, quinoxalinyl, dihydroquinoxalinyl, quinazolinyl, cinnolinyl, phthalazinyl, benzimidazolyl, benzothiazolyl, benzoxazolyl, benzothiadiazolyl, furyl, thienyl, thiazolidinyl, isothiazolyl, triazolyl, tetrazolyl, oxadiazolyl (e.g., 1,2,3-oxadiazolyl), purinyl, thiadiazolyl (e.g., 1,2,3-thiadiazolyl), tetrahydrofuranyl, dihydrofuranyl, tetrahydrothienyl, dihydrothienyl, dihydroindolyl, dihydroquinolyl, tetrahydroquinolyl, tetrahydroisoquinolyl, dihydroisoquinolyl, pyranyl, dihydropyranyl, dithiazolyl, benzofuranyl, isobenzofuranyl, benzothienyl, and the like, including dihydro and tetrahydro forms thereof, where one or more double bonds are reduced and replaced with hydrogens. Still other exemplary heterocyclyls include: 2,3,4,5-tetrahydro-2-oxo-oxazolyl; 2,3-dihydro-2-oxo-1H-imidazolyl; 2,3,4,5-tetrahydro-5-oxo-1H-pyrazolyl (e.g., 2,3,4,5-tetrahydro-2-phenyl-5-oxo-1H-pyrazolyl); 2,3,4,5-tetrahydro-2,4-dioxo-1H-imidazolyl (e.g., 2,3,4,5-tetrahydro-2,4-dioxo-5-methyl-5-phenyl-1H-imidazolyl); 2,3-dihydro-2-thioxo-1,3,4-oxadiazolyl (e.g., 2,3-dihydro-2-thioxo-5-phenyl-1,3,4-oxadiazolyl); 4,5-dihydro-5-oxo-1H-triazolyl (e.g., 4,5-dihydro-3-methyl-4-amino 5-oxo-1H-triazolyl); 1,2,3,4-tetrahydro-2,4-dioxopyridinyl (e.g., 1,2,3,4-tetrahydro-2,4-dioxo-3,3-diethylpyridinyl); 2,6-dioxo-piperidinyl (e.g., 2,6-dioxo-3-ethyl-3-phenylpiperidinyl); 1,6-dihydro-6-oxopyridiminyl; 1,6-dihydro-4-oxopyrimidinyl (e.g., 2-(methylthio)-1,6-dihydro-4-oxo-5-methylpyrimidin-1-yl); 1,2,3,4-tetrahydro-2,4-dioxopyrimidinyl (e.g., 1,2,3,4-tetrahydro-2,4-dioxo-3-ethylpyrimidinyl); 1,6-dihydro-6-oxo-pyridazinyl (e.g., 1,6-dihydro-6-oxo-3-ethylpyridazinyl); 1,6-dihydro-6-oxo-1,2,4-triazinyl (e.g., 1,6-dihydro-5-isopropyl-6-oxo-1,2,4-triazinyl); 2,3-dihydro-2-oxo-1H-indolyl (e.g., 3,3-dimethyl-2,3-dihydro-2-oxo-1H-indolyl and 2,3-dihydro-2-oxo-3,3′-spiropropane-1H-indol-1-yl); 1,3-dihydro-1-oxo-2H-iso-indolyl; 1,3-dihydro-1,3-dioxo-2H-iso-indolyl; 1H-benzopyrazolyl (e.g., 1-(ethoxycarbonyl)-1H-benzopyrazolyl); 2,3-dihydro-2-oxo-1H-benzimidazolyl (e.g., 3-ethyl-2,3-dihydro-2-oxo-1H-benzimidazolyl); 2,3-dihydro-2-oxo-benzoxazolyl (e.g., 5-chloro-2,3-dihydro-2-oxo-benzoxazolyl); 2,3-dihydro-2-oxo-benzoxazolyl; 2-oxo-2H-benzopyranyl; 1,4-benzodioxanyl; 1,3-benzodioxanyl; 2,3-dihydro-3-oxo,4H-1,3-benzothiazinyl; 3,4-dihydro-4-oxo-3H-quinazolinyl (e.g., 2-methyl-3,4-dihydro-4-oxo-3H-quinazolinyl); 1,2,3,4-tetrahydro-2,4-dioxo-3H-quinazolyl (e.g., 1-ethyl-1,2,3,4-tetrahydro-2,4-dioxo-3H-quinazolyl); 1,2,3,6-tetrahydro-2,6-dioxo-7H-purinyl (e.g., 1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purinyl); 1,2,3,6-tetrahydro-2,6-dioxo-1H purinyl (e.g., 1,2,3,6-tetrahydro-3,7-dimethyl-2,6-dioxo-1H-purinyl); 2-oxobenz[c,d]indolyl; 1,1-dioxo-2H-naphth[1,8-c,d]isothiazolyl; and 1,8-naphthylenedicarboxamido. Additional heterocyclics include 3,3a,4,5,6,6α-hexahydro-pyrrolo[3,4-b]pyrrol-(2H)-yl, and 2,5-diazabicyclo[2.2.1]heptan-2-yl, homopiperazinyl (or diazepanyl), tetrahydropyranyl, dithiazolyl, benzofuranyl, benzothienyl, oxepanyl, thiepanyl, azocanyl, oxecanyl, and thiocanyl. Heterocyclic groups also include groups of the formula

where

E′ is selected from the group consisting of —N— and —CH—; F′ is selected from the group consisting of —N═CH—, —NH—CH₂—, —NH—C(O)—, —NH—, —CH═N—, —CH₂—NH—, —C(O)—NH—, —CH═CH—, —CH₂—, —CH₂CH₂—, —CH₂O—, —OCH₂—, —O—, and —S—; and G′ is selected from the group consisting of —CH— and —N—. Any of the heterocyclyl groups mentioned herein may be optionally substituted with one, two, three, four or five substituents independently selected from the group consisting of: (1) C₁₋₇ acyl (e.g., carboxyaldehyde); (2) C₁₋₂₀ alkyl (e.g., C₁₋₆ alkyl, C₁₋₆ alkoxy-C₁₋₆ alkyl, C₁₋₆ alkylsulfinyl-C₁₋₆ alkyl, amino-C₁₋₆ alkyl, azido-C₁₋₆ alkyl, (carboxyaldehyde)-C₁₋₆ alkyl, halo-C₁₋₆ alkyl (e.g., perfluoroalkyl), hydroxy-C₁₋₆ alkyl, nitro-C₁₋₆ alkyl, or C₁₋₆ thioalkoxy-C₁₋₆ alkyl); (3) C₁₋₂₀ alkoxy (e.g., C₁₋₆ alkoxy, such as perfluoroalkoxy); (4) C₁₋₆ alkylsulfinyl; (5) C₆₋₁₀ aryl; (6) amino; (7) C₆₋₁₀ aryl C₁₋₆ alkyl; (8) azido; (9) C₃₋₈ cycloalkyl; (10) C₃₋₈ cycloalkyl C₁₋₆ alkyl; (11) halo; (12) C₁₋₁₂ heterocyclyl (e.g., C₂₋₁₂ heteroaryl); (13) (C₁₋₁₂ heterocyclyl)oxy; (14) hydroxy; (15) nitro; (16) C₁₋₂₀ thioalkoxy (e.g., C₁₋₆ thioalkoxy); (17) —(CH₂)_(q)CO₂R^(A′), where q is an integer from zero to four, and R^(A′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, (c) hydrogen, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (18) —(CH₂)_(q)CONR^(B′)R^(C′), where q is an integer from zero to four and where R^(B′) and R^(C′) are independently selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (19) —(CH₂)_(q)SO₂R^(D′), where q is an integer from zero to four and where R^(D′) is selected from the group consisting of (a) C₁₋₆ alkyl, (b) C₆₋₁₀ aryl, and (c) C₆₋₁₀ aryl C₁₋₆ alkyl; (20) —(CH₂)_(q)SO₂NR^(E′)R^(F′), where q is an integer from zero to four and where each of R^(E′) and R^(F′) is, independently, selected from the group consisting of (a) hydrogen, (b) C₁₋₆ alkyl, (c) C₆₋₁₀ aryl, and (d) C₆₋₁₀ aryl C₁₋₆ alkyl; (21) thiol; (22) C₆₋₁₀ aryloxy; (23) C₃₋₈ cycloalkoxy; (24) arylalkoxy; (25) C₁₋₁₂ heterocyclyl C₁₋₆ alkyl (e.g., C₁₋₁₂ heteroaryl C₁₋₆ alkyl); (26) oxo; (27) (C₁₋₁₂ heterocyclyl)imino; (28) C₂₋₂₀ alkenyl; and (29) C₂₋₂₀ alkynyl. In some embodiments, each of these groups can be further substituted as described herein. For example, the alkylene group of a C₁-alkaryl or a C₁-alkheterocyclyl can be further substituted with an oxo group to afford the respective aryloyl and (heterocyclyl)oyl substituent group.

The term “(heterocyclyl) imino,” as used herein, represents a heterocyclyl group, as defined herein, attached to the parent molecular group through an imino group. In some embodiments, the heterocyclyl group can be substituted with 1, 2, 3, or 4 substituent groups as defined herein.

The term “(heterocyclyl)oxy,” as used herein, represents a heterocyclyl group, as defined herein, attached to the parent molecular group through an oxygen atom. In some embodiments, the heterocyclyl group can be substituted with 1, 2, 3, or 4 substituent groups as defined herein.

The term “(heterocyclyl)oyl,” as used herein, represents a heterocyclyl group, as defined herein, attached to the parent molecular group through a carbonyl group. In some embodiments, the heterocyclyl group can be substituted with 1, 2, 3, or 4 substituent groups as defined herein. The term “hydrocarbon,” as used herein, represents a group consisting only of carbon and hydrogen atoms.

The term “hydroxy,” as used herein, represents an —OH group. In some embodiments, the hydroxy group can be substituted with 1, 2, 3, or 4 substituent groups (e.g., O-protecting groups) as defined herein for an alkyl.

The term “hydroxyalkenyl,” as used herein, represents an alkenyl group, as defined herein, substituted by one to three hydroxy groups, with the proviso that no more than one hydroxy group may be attached to a single carbon atom of the alkyl group, and is exemplified by dihydroxypropenyl, hydroxyisopentenyl, and the like. In some embodiments, the hydroxyalkenyl group can be substituted with 1, 2, 3, or 4 substituent groups (e.g., O-protecting groups) as defined herein for an alkyl.

The term “hydroxyalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by one to three hydroxy groups, with the proviso that no more than one hydroxy group may be attached to a single carbon atom of the alkyl group, and is exemplified by hydroxymethyl, dihydroxypropyl, and the like. In some embodiments, the hydroxyalkyl group can be substituted with 1, 2, 3, or 4 substituent groups (e.g., O-protecting groups) as defined herein for an alkyl.

The term “hydroxyalkynyl,” as used herein, represents an alkynyl group, as defined herein, substituted by one to three hydroxy groups, with the proviso that no more than one hydroxy group may be attached to a single carbon atom of the alkyl group. In some embodiments, the hydroxyalkynyl group can be substituted with 1, 2, 3, or 4 substituent groups (e.g., O-protecting groups) as defined herein for an alkyl.

The term “isomer,” as used herein, means any tautomer, stereoisomer, enantiomer, or diastereomer of any compound of the invention. It is recognized that the compounds of the invention can have one or more chiral centers and/or double bonds and, therefore, exist as stereoisomers, such as double-bond isomers (i.e., geometric E/Z isomers) or diastereomers (e.g., enantiomers (i.e., (+) or (−)) or cis/trans isomers). According to the invention, the chemical structures depicted herein, and therefore the compounds of the invention, encompass all of the corresponding stereoisomers, that is, both the stereomerically pure form (e.g., geometrically pure, enantiomerically pure, or diastereomerically pure) and enantiomeric and stereoisomeric mixtures, e.g., racemates. Enantiomeric and stereoisomeric mixtures of compounds of the invention can typically be resolved into their component enantiomers or stereoisomers by well-known methods, such as chiral-phase gas chromatography, chiral-phase high performance liquid chromatography, crystallizing the compound as a chiral salt complex, or crystallizing the compound in a chiral solvent. Enantiomers and stereoisomers can also be obtained from stereomerically or enantiomerically pure intermediates, reagents, and catalysts by well-known asymmetric synthetic methods.

The term “N-protected amino,” as used herein, refers to an amino group, as defined herein, to which is attached one or two N-protecting groups, as defined herein.

The term “N-protecting group,” as used herein, represents those groups intended to protect an amino group against undesirable reactions during synthetic procedures. Commonly used N-protecting groups are disclosed in Greene, “Protective Groups in Organic Synthesis,” 3^(rd) Edition (John Wiley & Sons, New York, 1999), which is incorporated herein by reference. N-protecting groups include acyl, aryloyl, or carbamyl groups such as formyl, acetyl, propionyl, pivaloyl, t-butylacetyl, 2-chloroacetyl, 2-bromoacetyl, trifluoroacetyl, trichloroacetyl, phthalyl, o-nitrophenoxyacetyl, α-chlorobutyryl, benzoyl, 4-chlorobenzoyl, 4-bromobenzoyl, 4-nitrobenzoyl, and chiral auxiliaries such as protected or unprotected D, L or D, L-amino acids such as alanine, leucine, phenylalanine, and the like; sulfonyl-containing groups such as benzenesulfonyl, p-toluenesulfonyl, and the like; carbamate forming groups such as benzyloxycarbonyl, p-chlorobenzyloxycarbonyl, p-methoxybenzyloxycarbonyl, p-n itrobenzyloxycarbonyl, 2-nitrobenzyloxycarbonyl, p-bromobenzyloxycarbonyl, 3,4-dimethoxybenzyloxycarbonyl, 3,5-dimethoxybenzyloxycarbonyl, 2,4-dimethoxybenzyloxycarbonyl, 4-methoxybenzyloxycarbonyl, 2-nitro-4,5-dimethoxybenzyloxycarbonyl, 3,4,5-trimethoxybenzyloxycarbonyl, 1-(p-biphenylyl)-1-methylethoxycarbonyl, α,α-dimethyl-3,5-dimethoxybenzyloxycarbonyl, benzhydryloxy carbonyl, t-butyloxycarbonyl, diisopropylmethoxycarbonyl, isopropyloxycarbonyl, ethoxycarbonyl, methoxycarbonyl, allyloxycarbonyl, 2,2,2,-trichloroethoxycarbonyl, phenoxycarbonyl, 4-nitrophenoxy carbonyl, fluorenyl-9-methoxycarbonyl, cyclopentyloxycarbonyl, adamantyloxycarbonyl, cyclohexyloxycarbonyl, phenylthiocarbonyl, and the like, alkaryl groups such as benzyl, triphenylmethyl, benzyloxymethyl, and the like and silyl groups, such as trimethylsilyl, and the like. Preferred N-protecting groups are formyl, acetyl, benzoyl, pivaloyl, t-butylacetyl, alanyl, phenylsulfonyl, benzyl, t-butyloxycarbonyl (Boc), and benzyloxycarbonyl (Cbz).

The term “nitro,” as used herein, represents an —NO₂ group.

The term “O-protecting group,” as used herein, represents those groups intended to protect an oxygen containing (e.g., phenol, hydroxyl, or carbonyl) group against undesirable reactions during synthetic procedures. Commonly used O-protecting groups are disclosed in Greene, “Protective Groups in Organic Synthesis,” 3^(rd) Edition (John Wiley & Sons, New York, 1999), which is incorporated herein by reference. Exemplary O-protecting groups include acyl, aryloyl, or carbamyl groups, such as formyl, acetyl, propionyl, pivaloyl, t-butylacetyl, 2-chloroacetyl, 2-bromoacetyl, trifluoroacetyl, trichloroacetyl, phthalyl, o-nitrophenoxyacetyl, α-chlorobutyryl, benzoyl, 4-chlorobenzoyl, 4-bromobenzoyl, t-butyldimethylsilyl, tri-iso-propylsilyloxymethyl, 4,4′-dimethoxytrityl, isobutyryl, phenoxyacetyl, 4-isopropylpehenoxyacetyl, dimethylformamidino, and 4-nitrobenzoyl; alkylcarbonyl groups, such as acyl, acetyl, propionyl, pivaloyl, and the like; optionally substituted arylcarbonyl groups, such as benzoyl; silyl groups, such as trimethylsilyl (TMS), tert-butyldimethylsilyl (TBDMS), tri-iso-propylsilyloxymethyl (TOM), triisopropylsilyl (TIPS), and the like; ether-forming groups with the hydroxyl, such methyl, methoxymethyl, tetrahydropyranyl, benzyl, p-methoxybenzyl, trityl, and the like; alkoxycarbonyls, such as methoxycarbonyl, ethoxycarbonyl, isopropoxycarbonyl, n-isopropoxycarbonyl, n-butyloxycarbonyl, isobutyloxycarbonyl, sec-butyloxycarbonyl, t-butyloxycarbonyl, 2-ethylhexyloxycarbonyl, cyclohexyloxycarbonyl, methyloxycarbonyl, and the like; alkoxyalkoxycarbonyl groups, such as methoxymethoxycarbonyl, ethoxymethoxycarbonyl, 2-methoxyethoxycarbonyl, 2-ethoxyethoxycarbonyl, 2-butoxyethoxycarbonyl, 2-methoxyethoxymethoxycarbonyl, allyloxycarbonyl, propargyloxycarbonyl, 2-butenoxycarbonyl, 3-methyl-2-butenoxycarbonyl, and the like; haloalkoxycarbonyls, such as 2-chloroethoxycarbonyl, 2-chloroethoxycarbonyl, 2,2,2-trichloroethoxycarbonyl, and the like; optionally substituted arylalkoxycarbonyl groups, such as benzyloxycarbonyl, p-methylbenzyloxycarbonyl, p-methoxybenzyloxycarbonyl, p-n itrobenzyloxycarbonyl, 2,4-dinitrobenzyloxycarbonyl, 3,5-dimethylbenzyloxycarbonyl, p-chlorobenzyloxycarbonyl, p-bromobenzyloxy-carbonyl, fluorenylmethyloxycarbonyl, and the like; and optionally substituted aryloxycarbonyl groups, such as phenoxycarbonyl, p-nitrophenoxycarbonyl, o-nitrophenoxycarbonyl, 2,4-din itrophenoxycarbonyl, p-methyl-phenoxycarbonyl, m-methylphenoxycarbonyl, o-bromophenoxycarbonyl, 3,5-dimethylphenoxycarbonyl, p-chlorophenoxycarbonyl, 2-chloro-4-nitrophenoxy-carbonyl, and the like); substituted alkyl, aryl, and alkaryl ethers (e.g., trityl; methylthiomethyl; methoxymethyl; benzyloxymethyl; siloxymethyl; 2,2,2,-trichloroethoxymethyl; tetrahydropyranyl; tetrahydrofuranyl; ethoxyethyl; 1-[2-(trimethylsilyl)ethoxy]ethyl; 2-trimethylsilylethyl; t-butyl ether; p-chlorophenyl, p-methoxyphenyl, p-nitrophenyl, benzyl, p-methoxybenzyl, and nitrobenzyl); silyl ethers (e.g., trimethylsilyl; triethylsilyl; triisopropylsilyl; dimethylisopropylsilyl; t-butyldimethylsilyl; t-butyldiphenylsilyl; tribenzylsilyl; triphenylsilyl; and diphenymethylsilyl); carbonates (e.g., methyl, methoxymethyl, 9-fluorenylmethyl; ethyl; 2,2,2-trichloroethyl; 2-(trimethylsilyl)ethyl; vinyl, allyl, nitrophenyl; benzyl; methoxybenzyl; 3,4-dimethoxybenzyl; and nitrobenzyl); carbonyl-protecting groups (e.g., acetal and ketal groups, such as dimethyl acetal, 1,3-dioxolane, and the like; acylal groups; and dithiane groups, such as 1,3-dithianes, 1,3-dithiolane, and the like); carboxylic acid-protecting groups (e.g., ester groups, such as methyl ester, benzyl ester, t-butyl ester, orthoesters, and the like; and oxazoline groups.

The term “oxo” as used herein, represents ═O.

The term “perfluoroalkyl,” as used herein, represents an alkyl group, as defined herein, where each hydrogen radical bound to the alkyl group has been replaced by a fluoride radical. Perfluoroalkyl groups are exemplified by trifluoromethyl, pentafluoroethyl, and the like.

The term “perfluoroalkoxy,” as used herein, represents an alkoxy group, as defined herein, where each hydrogen radical bound to the alkoxy group has been replaced by a fluoride radical. Perfluoroalkoxy groups are exemplified by trifluoromethoxy, pentafluoroethoxy, and the like.

The term “spirocyclyl,” as used herein, represents a C₂₋₇ alkylene diradical, both ends of which are bonded to the same carbon atom of the parent group to form a spirocyclic group, and also a C₁₋₆ heteroalkylene diradical, both ends of which are bonded to the same atom. The heteroalkylene radical forming the spirocyclyl group can containing one, two, three, or four heteroatoms independently selected from the group consisting of nitrogen, oxygen, and sulfur. In some embodiments, the spirocyclyl group includes one to seven carbons, excluding the carbon atom to which the diradical is attached. The spirocyclyl groups of the invention may be optionally substituted with 1, 2, 3, or 4 substituents provided herein as optional substituents for cycloalkyl and/or heterocyclyl groups.

The term “stereoisomer,” as used herein, refers to all possible different isomeric as well as conformational forms which a compound may possess (e.g., a compound of any formula described herein), in particular all possible stereochemically and conformationally isomeric forms, all diastereomers, enantiomers and/or conformers of the basic molecular structure. Some compounds of the present invention may exist in different tautomeric forms, all of the latter being included within the scope of the present invention.

The term “sulfoalkyl,” as used herein, represents an alkyl group, as defined herein, substituted by a sulfo group of —SO₃H. In some embodiments, the alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein, and the sulfo group can be further substituted with one or more O-protecting groups (e.g., as described herein).

The term “sulfonyl,” as used herein, represents an —S(O)₂— group.

The term “thioalkaryl,” as used herein, represents a chemical substituent of formula —SR, where R is an alkaryl group. In some embodiments, the alkaryl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein.

The term “thioalkheterocyclyl,” as used herein, represents a chemical substituent of formula —SR, where R is an alkheterocyclyl group. In some embodiments, the alkheterocyclyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein.

The term “thioalkoxy,” as used herein, represents a chemical substituent of formula —SR, where R is an alkyl group, as defined herein. In some embodiments, the alkyl group can be further substituted with 1, 2, 3, or 4 substituent groups as described herein.

Compound: As used herein, the term “compound,” is meant to include all stereoisomers, geometric isomers, tautomers, and isotopes of the structures depicted.

The compounds described herein can be asymmetric (e.g., having one or more stereocenters). All stereoisomers, such as enantiomers and diastereomers, are intended unless otherwise indicated. Compounds of the present disclosure that contain asymmetrically substituted carbon atoms can be isolated in optically active or racemic forms. Methods on how to prepare optically active forms from optically active starting materials are known in the art, such as by resolution of racemic mixtures or by stereoselective synthesis. Many geometric isomers of olefins, C═N double bonds, and the like can also be present in the compounds described herein, and all such stable isomers are contemplated in the present disclosure. Cis and trans geometric isomers of the compounds of the present disclosure are described and may be isolated as a mixture of isomers or as separated isomeric forms.

Compounds of the present disclosure also include tautomeric forms. Tautomeric forms result from the swapping of a single bond with an adjacent double bond and the concomitant migration of a proton. Tautomeric forms include prototropic tautomers which are isomeric protonation states having the same empirical formula and total charge. Examples prototropic tautomers include ketone—enol pairs, amide—imidic acid pairs, lactam—lactim pairs, amide—imidic acid pairs, enamine—imine pairs, and annular forms where a proton can occupy two or more positions of a heterocyclic system, such as, 1H- and 3H-imidazole, 1H-, 2H- and 4H-1,2,4-triazole, 1H- and 2H-isoindole, and 1H- and 2H-pyrazole. Tautomeric forms can be in equilibrium or sterically locked into one form by appropriate substitution.

Compounds of the present disclosure also include all of the isotopes of the atoms occurring in the intermediate or final compounds. “Isotopes” refers to atoms having the same atomic number but different mass numbers resulting from a different number of neutrons in the nuclei. For example, isotopes of hydrogen include tritium and deuterium.

The compounds and salts of the present disclosure can be prepared in combination with solvent or water molecules to form solvates and hydrates by routine methods.

Conserved: As used herein, the term “conserved” refers to nucleotides or amino acid residues of a polynucleotide sequence or polypeptide sequence, respectively, that are those that occur unaltered in the same position of two or more sequences being compared. Nucleotides or amino acids that are relatively conserved are those that are conserved amongst more related sequences than nucleotides or amino acids appearing elsewhere in the sequences.

In some embodiments, two or more sequences are said to be “completely conserved” if they are 100% identical to one another. In some embodiments, two or more sequences are said to be “highly conserved” if they are at least 70% identical, at least 80% identical, at least 90% identical, or at least 95% identical to one another. In some embodiments, two or more sequences are said to be “highly conserved” if they are about 70% identical, about 80% identical, about 90% identical, about 95%, about 98%, or about 99% identical to one another. In some embodiments, two or more sequences are said to be “conserved” if they are at least 30% identical, at least 40% identical, at least 50% identical, at least 60% identical, at least 70% identical, at least 80% identical, at least 90% identical, or at least 95% identical to one another. In some embodiments, two or more sequences are said to be “conserved” if they are about 30% identical, about 40% identical, about 50% identical, about 60% identical, about 70% identical, about 80% identical, about 90% identical, about 95% identical, about 98% identical, or about 99% identical to one another. Conservation of sequence may apply to the entire length of an oligonucleotide or polypeptide or may apply to a portion, region or feature thereof.

Cyclic or Cyclized: As used herein, the term “cyclic” refers to the presence of a continuous loop. Cyclic molecules need not be circular, only joined to form an unbroken chain of subunits. Cyclic molecules such as the mRNA of the present invention may be single units or multimers or comprise one or more components of a complex or higher order structure.

Cytostatic: As used herein, “cytostatic” refers to inhibiting, reducing, suppressing the growth, division, or multiplication of a cell (e.g., a mammalian cell (e.g., a human cell)), bacterium, virus, fungus, protozoan, parasite, prion, or a combination thereof.

Cytotoxic: As used herein, “cytotoxic” refers to killing or causing injurious, toxic, or deadly effect on a cell (e.g., a mammalian cell (e.g., a human cell)), bacterium, virus, fungus, protozoan, parasite, prion, or a combination thereof.

Delivery: As used herein, “delivery” refers to the act or manner of delivering a compound, substance, entity, moiety, cargo or payload.

Delivery Agent: As used herein, “delivery agent” refers to any substance which facilitates, at least in part, the in vivo delivery of a polynucleotide to targeted cells.

Destabilized: As used herein, the term “destable,” “destabilize,” or “destabilizing region” means a region or molecule that is less stable than a starting, wild-type or native form of the same region or molecule.

Detectable label: As used herein, “detectable label” refers to one or more markers, signals, or moieties which are attached, incorporated or associated with another entity that is readily detected by methods known in the art including radiography, fluorescence, chemiluminescence, enzymatic activity, and absorbance. Detectable labels include radioisotopes, fluorophores, chromophores, enzymes, dyes, metal ions, ligands such as biotin, avidin, streptavidin and haptens, and quantum dots. Detectable labels may be located at any position in the peptides or proteins disclosed herein. They may be within the amino acids, the peptides, or proteins, or located at the N- or C-termini.

Digest: As used herein, the term “digest” means to break apart into smaller pieces or components. When referring to polypeptides or proteins, digestion results in the production of peptides.

Distal: As used herein, the term “distal” means situated away from the center or away from a point or region of interest.

Encoded protein cleavage signal: As used herein, “encoded protein cleavage signal” refers to the nucleotide sequence which encodes a protein cleavage signal.

Engineered: As used herein, embodiments of the invention are “engineered” when they are designed to have a feature or property, whether structural or chemical, that varies from a starting point, wild type or native molecule.

Expression: As used herein, “expression” of a nucleic acid sequence refers to one or more of the following events: (1) production of an RNA template from a DNA sequence (e.g., by transcription); (2) processing of an RNA transcript (e.g., by splicing, editing, 5′ cap formation, and/or 3′ end processing); (3) translation of an RNA into a polypeptide or protein; and (4) post-translational modification of a polypeptide or protein.

Feature: As used herein, a “feature” refers to a characteristic, a property, or a distinctive element.

Formulation: As used herein, a “formulation” includes at least a polynucleotide and a delivery agent.

Fragment: A “fragment,” as used herein, refers to a portion. For example, fragments of proteins may comprise polypeptides obtained by digesting full-length protein isolated from cultured cells.

Functional: As used herein, a “functional” biological molecule is a biological molecule in a form in which it exhibits a property and/or activity by which it is characterized.

Homology. As used herein, the term “homology” refers to the overall relatedness between polymeric molecules, e.g. between nucleic acid molecules (e.g. DNA molecules and/or RNA molecules) and/or between polypeptide molecules. In some embodiments, polymeric molecules are considered to be “homologous” to one another if their sequences are at least 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, or 99% identical or similar. The term “homologous” necessarily refers to a comparison between at least two sequences (polynucleotide or polypeptide sequences). In accordance with the invention, two polynucleotide sequences are considered to be homologous if the polypeptides they encode are at least about 50%, 60%, 70%, 80%, 90%, 95%, or even 99% for at least one stretch of at least about 20 amino acids. In some embodiments, homologous polynucleotide sequences are characterized by the ability to encode a stretch of at least 4-5 uniquely specified amino acids. For polynucleotide sequences less than 60 nucleotides in length, homology is determined by the ability to encode a stretch of at least 4-5 uniquely specified amino acids. In accordance with the invention, two protein sequences are considered to be homologous if the proteins are at least about 50%, 60%, 70%, 80%, or 90% identical for at least one stretch of at least about 20 amino acids.

Identity. As used herein, the term “identity” refers to the overall relatedness between polymeric molecules, e.g., between oligonucleotide molecules (e.g. DNA molecules and/or RNA molecules) and/or between polypeptide molecules. Calculation of the percent identity of two polynucleotide sequences, for example, can be performed by aligning the two sequences for optimal comparison purposes (e.g., gaps can be introduced in one or both of a first and a second nucleic acid sequences for optimal alignment and non-identical sequences can be disregarded for comparison purposes). In certain embodiments, the length of a sequence aligned for comparison purposes is at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, or 100% of the length of the reference sequence. The nucleotides at corresponding nucleotide positions are then compared. When a position in the first sequence is occupied by the same nucleotide as the corresponding position in the second sequence, then the molecules are identical at that position. The percent identity between the two sequences is a function of the number of identical positions shared by the sequences, taking into account the number of gaps, and the length of each gap, which needs to be introduced for optimal alignment of the two sequences. The comparison of sequences and determination of percent identity between two sequences can be accomplished using a mathematical algorithm. For example, the percent identity between two nucleotide sequences can be determined using methods such as those described in Computational Molecular Biology, Lesk, A. M., ed., Oxford University Press, New York, 1988; Biocomputing: Informatics and Genome Projects, Smith, D. W., ed., Academic Press, New York, 1993; Sequence Analysis in Molecular Biology, von Heinje, G., Academic Press, 1987; Computer Analysis of Sequence Data, Part I, Griffin, A. M., and Griffin, H. G., eds., Humana Press, New Jersey, 1994; and Sequence Analysis Primer, Gribskov, M. and Devereux, J., eds., M Stockton Press, New York, 1991; each of which is incorporated herein by reference. For example, the percent identity between two nucleotide sequences can be determined using the algorithm of Meyers and Miller (CABIOS, 1989, 4:11-17), which has been incorporated into the ALIGN program (version 2.0) using a PAM120 weight residue table, a gap length penalty of 12 and a gap penalty of 4. The percent identity between two nucleotide sequences can, alternatively, be determined using the GAP program in the GCG software package using an NWSgapdna.CMP matrix. Methods commonly employed to determine percent identity between sequences include, but are not limited to those disclosed in Carillo, H., and Lipman, D., SIAM J Applied Math., 48:1073 (1988); incorporated herein by reference. Techniques for determining identity are codified in publicly available computer programs. Exemplary computer software to determine homology between two sequences include, but are not limited to, GCG program package, Devereux, J., et al., Nucleic Acids Research, 12(1), 387 (1984)), BLASTP, BLASTN, and FASTAn altschul, S. F. et al., J. Molec. Biol., 215, 403 (1990)).

Inhibit expression of a gene: As used herein, the phrase “inhibit expression of a gene” means to cause a reduction in the amount of an expression product of the gene. The expression product can be an RNA transcribed from the gene (e.g., an mRNA) or a polypeptide translated from an mRNA transcribed from the gene. Typically a reduction in the level of an mRNA results in a reduction in the level of a polypeptide translated therefrom. The level of expression may be determined using standard techniques for measuring mRNA or protein.

In vitro: As used herein, the term “in vitro” refers to events that occur in an artificial environment, e.g., in a test tube or reaction vessel, in cell culture, or in a Petri dish, rather than within an organism (e.g., animal, plant, or microbe).

In vivo: As used herein, the term “in vivo” refers to events that occur within an organism (e.g., animal, plant, or microbe or cell or tissue thereof).

Isolated: As used herein, the term “isolated” refers to a substance or entity that has been separated from at least some of the components with which it was associated (whether in nature or in an experimental setting). Isolated substances may have varying levels of purity in reference to the substances from which they have been associated. Isolated substances and/or entities may be separated from at least about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, about 90%, or more of the other components with which they were initially associated. In some embodiments, isolated agents are more than about 80%, about 85%, about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, or more than about 99% pure. As used herein, a substance is “pure” if it is substantially free of other components. Substantially isolated: By “substantially isolated” is meant that the compound is substantially separated from the environment in which it was formed or detected. Partial separation can include, for example, a composition enriched in the compound of the present disclosure. Substantial separation can include compositions containing at least about 50%, at least about 60%, at least about 70%, at least about 80%, at least about 90%, at least about 95%, at least about 97%, or at least about 99% by weight of the compound of the present disclosure, or salt thereof. Methods for isolating compounds and their salts are routine in the art.

Linker: As used herein, a linker refers to a group of atoms, e.g., 10-1,000 atoms, and can be comprised of the atoms or groups such as, but not limited to, carbon, amino, alkylamino, oxygen, sulfur, sulfoxide, sulfonyl, carbonyl, and imine. The linker can be attached to an alternative nucleoside or nucleotide on the nucleobase or sugar moiety at a first end, and to a payload, e.g., a detectable or therapeutic agent, at a second end. The linker may be of sufficient length as to not interfere with incorporation into a nucleic acid sequence. The linker can be used for any useful purpose, such as to form multimers (e.g., through linkage of two or more polynucleotides) or conjugates, as well as to administer a payload, as described herein. Examples of chemical groups that can be incorporated into the linker include, but are not limited to, alkyl, alkenyl, alkynyl, amido, amino, ether, thioether, ester, alkylene, heteroalkylene, aryl, or heterocyclyl, each of which can be optionally substituted, as described herein. Examples of linkers include, but are not limited to, unsaturated alkanes, polyethylene glycols (e.g., ethylene or propylene glycol monomeric units, e.g., diethylene glycol, dipropylene glycol, triethylene glycol, tripropylene glycol, tetraethylene glycol, or tetraethylene glycol), and dextran polymers, Other examples include, but are not limited to, cleavable moieties within the linker, such as, for example, a disulfide bond (—S—S—) or an azo bond (—N═N—), which can be cleaved using a reducing agent or photolysis. Non-limiting examples of a selectively cleavable bond include an amido bond can be cleaved for example by the use of tris(2-carboxyethyl)phosphine (TCEP), or other reducing agents, and/or photolysis, as well as an ester bond can be cleaved for example by acidic or basic hydrolysis.

Altered: As used herein “altered” refers to a changed state or structure of a molecule of the invention. Molecules may be altered in many ways including chemically, structurally, and functionally. In one embodiment, the mRNA molecules of the present invention are altered by the introduction of non-natural nucleosides and/or nucleotides, e.g., as it relates to the natural ribonucleotides A, U, G, and C. Noncanonical nucleotides such as the cap structures are not considered “altered” although they differ from the chemical structure of the A, C, G, U ribonucleotides.

Naturally occurring: As used herein, “naturally occurring” means existing in nature without artificial aid.

Non-human vertebrate: As used herein, a “non human vertebrate” includes all vertebrates except Homo sapiens, including wild and domesticated species. Examples of non-human vertebrates include, but are not limited to, mammals, such as alpaca, banteng, bison, camel, cat, cattle, deer, dog, donkey, gayal, goat, guinea pig, horse, llama, mule, pig, rabbit, reindeer, sheep water buffalo, and yak.

Off-target: As used herein, “off target” refers to any unintended effect on any one or more target, gene, or cellular transcript.

Open reading frame: As used herein, “open reading frame” or “ORF” refers to a sequence which does not contain a stop codon in a given reading frame.

Operably linked: As used herein, the phrase “operably linked” refers to a functional connection between two or more molecules, constructs, transcripts, entities, moieties or the like.

Paratope: As used herein, a “paratope” refers to the antigen-binding site of an antibody.

Patient: As used herein, “patient” refers to a subject who may seek or be in need of treatment, requires treatment, is receiving treatment, will receive treatment, or a subject who is under care by a trained professional for a particular disease or condition.

Optionally substituted: Herein a phrase of the form “optionally substituted X” (e.g., optionally substituted alkyl) is intended to be equivalent to “X, wherein X is optionally substituted” (e.g., “alkyl, wherein said alkyl is optionally substituted”). It is not intended to mean that the feature “X” (e.g. alkyl) per se is optional.

Peptide: As used herein, “peptide” is less than or equal to 50 amino acids long, e.g., about 5, 10, 15, 20, 25, 30, 35, 40, 45, or 50 amino acids long.

Pharmaceutically acceptable: The phrase “pharmaceutically acceptable” is employed herein to refer to those compounds, materials, compositions, and/or dosage forms which are, within the scope of sound medical judgment, suitable for use in contact with the tissues of human beings and animals without excessive toxicity, irritation, allergic response, or other problem or complication, commensurate with a reasonable benefit/risk ratio.

Pharmaceutically acceptable excipients: The phrase “pharmaceutically acceptable excipient,” as used herein, refers any ingredient other than the compounds described herein (for example, a vehicle capable of suspending or dissolving the active compound) and having the properties of being substantially nontoxic and non-inflammatory in a patient. Excipients may include, for example: antiadherents, antioxidants, binders, coatings, compression aids, disintegrants, dyes (colors), emollients, emulsifiers, fillers (diluents), film formers or coatings, flavors, fragrances, glidants (flow enhancers), lubricants, preservatives, printing inks, sorbents, suspensing or dispersing agents, sweeteners, and waters of hydration. Exemplary excipients include, but are not limited to: butylated hydroxytoluene (BHT), calcium carbonate, calcium phosphate (dibasic), calcium stearate, croscarmellose, crosslinked polyvinyl pyrrolidone, citric acid, crospovidone, cysteine, ethylcellulose, gelatin, hydroxypropyl cellulose, hydroxypropyl methylcellulose, lactose, magnesium stearate, maltitol, mannitol, methionine, methylcellulose, methyl paraben, microcrystalline cellulose, polyethylene glycol, polyvinyl pyrrolidone, povidone, pregelatinized starch, propyl paraben, retinyl palmitate, shellac, silicon dioxide, sodium carboxymethyl cellulose, sodium citrate, sodium starch glycolate, sorbitol, starch (corn), stearic acid, sucrose, talc, titanium dioxide, vitamin A, vitamin E, vitamin C, and xylitol.

Pharmaceutically acceptable salts: The present disclosure also includes pharmaceutically acceptable salts of the compounds described herein. As used herein, “pharmaceutically acceptable salts” refers to derivatives of the disclosed compounds wherein the parent compound is altered by converting an existing acid or base moiety to its salt form (e.g., by reacting the free base group with a suitable organic acid). Examples of pharmaceutically acceptable salts include, but are not limited to, mineral or organic acid salts of basic residues such as amines; alkali or organic salts of acidic residues such as carboxylic acids. Representative acid addition salts include acetate, adipate, alginate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, fumarate, glucoheptonate, glycerophosphate, hemisulfate, heptonate, hexanoate, hydrobromide, hydrochloride, hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2-naphthalenesulfonate, nicotinate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate, persulfate, 3-phenylpropionate, phosphate, picrate, pivalate, propionate, stearate, succinate, sulfate, tartrate, thiocyanate, toluenesulfonate, undecanoate, and valerate salts. Representative alkali or alkaline earth metal salts include sodium, lithium, potassium, calcium, magnesium, and the like, as well as nontoxic ammonium, quaternary ammonium, and amine cations, including, but not limited to ammonium, tetramethylammonium, tetraethylammonium, methylamine, dimethylamine, trimethylamine, triethylamine, and ethylamine. The pharmaceutically acceptable salts of the present disclosure include the conventional non-toxic salts of the parent compound formed, for example, from non-toxic inorganic or organic acids. The pharmaceutically acceptable salts of the present disclosure can be synthesized from the parent compound which contains a basic or acidic moiety by conventional chemical methods. Generally, such salts can be prepared by reacting the free acid or base forms of these compounds with a stoichiometric amount of the appropriate base or acid in water or in an organic solvent, or in a mixture of the two; generally, nonaqueous media like ether, ethyl acetate, ethanol, isopropanol, or acetonitrile are preferred. Lists of suitable salts are found in Remington's Pharmaceutical Sciences, 17^(th) ed., Mack Publishing Company, Easton, Pa., 1985, p. 1418, Pharmaceutical Salts: Properties, Selection, and Use, P. H. Stahl and C. G. Wermuth (eds.), Wiley-VCH, 2008, and Berge et al., Journal of Pharmaceutical Science, 66, 1-19 (1977), each of which is incorporated herein by reference in its entirety.

Pharmacokinetic: As used herein, “pharmacokinetic” refers to any one or more properties of a molecule or compound as it relates to the determination of the fate of substances administered to a living organism. Pharmacokinetics is divided into several areas including the extent and rate of absorption, distribution, metabolism and excretion. This is commonly referred to as ADME where: (A) Absorption is the process of a substance entering the blood circulation; (D) Distribution is the dispersion or dissemination of substances throughout the fluids and tissues of the body; (M) Metabolism (or Biotransformation) is the irreversible transformation of parent compounds into daughter metabolites; and (E) Excretion (or Elimination) refers to the elimination of the substances from the body. In rare cases, some drugs irreversibly accumulate in body tissue.

Pharmaceutically acceptable solvate: The term “pharmaceutically acceptable solvate,” as used herein, means a compound of the invention wherein molecules of a suitable solvent are incorporated in the crystal lattice. A suitable solvent is physiologically tolerable at the dosage administered. For example, solvates may be prepared by crystallization, recrystallization, or precipitation from a solution that includes organic solvents, water, or a mixture thereof. Examples of suitable solvents are ethanol, water (for example, mono-, di-, and tri-hydrates), N-methylpyrrolidinone (NMP), dimethyl sulfoxide (DMSO), N,N′-dimethylformamide (DMF), N,N′-dimethylacetamide (DMAC), 1,3-dimethyl-2-imidazolidinone (DMEU), 1,3-dimethyl-3,4,5,6-tetrahydro-2-(1H)-pyrimidinone (DMPU), acetonitrile (ACN), propylene glycol, ethyl acetate, benzyl alcohol, 2-pyrrolidone, and benzyl benzoate. When water is the solvent, the solvate is referred to as a “hydrate.”

Physicochemical: As used herein, “physicochemical” means of or relating to a physical and/or chemical property.

Preventing: As used herein, the term “preventing” refers to partially or completely delaying onset of an infection, disease, disorder and/or condition; partially or completely delaying onset of one or more symptoms, features, or clinical manifestations of a particular infection, disease, disorder, and/or condition; partially or completely delaying onset of one or more symptoms, features, or manifestations of a particular infection, disease, disorder, and/or condition; partially or completely delaying progression from an infection, a particular disease, disorder and/or condition; and/or decreasing the risk of developing pathology associated with the infection, the disease, disorder, and/or condition.

Prodrug: The present disclosure also includes prodrugs of the compounds described herein. As used herein, “prodrugs” refer to any substance, molecule or entity which is in a form predicate for that substance, molecule or entity to act as a therapeutic upon chemical or physical alteration. Prodrugs may by covalently bonded or sequestered in some way and which release or are converted into the active drug moiety prior to, upon or after administered to a mammalian subject. Prodrugs can be prepared by modifying functional groups present in the compounds in such a way that the modifications are cleaved, either in routine manipulation or in vivo, to the parent compounds. Prodrugs include compounds wherein hydroxyl, amino, sulfhydryl, or carboxyl groups are bonded to any group that, when administered to a mammalian subject, cleaves to form a free hydroxyl, amino, sulfhydryl, or carboxyl group respectively. Preparation and use of prodrugs is discussed in T. Higuchi and V. Stella, “Pro-drugs as Novel Delivery Systems,” Vol. 14 of the A.C.S. Symposium Series, and in Bioreversible Carriers in Drug Design, ed. Edward B. Roche, American Pharmaceutical Association and Pergamon Press, 1987, both of which are hereby incorporated by reference in their entirety.

Proliferate: As used herein, the term “proliferate” means to grow, expand or increase or cause to grow, expand or increase rapidly. “Proliferative” means having the ability to proliferate. “Anti-proliferative” means having properties counter to or inapposite to proliferative properties.

Protein cleavage site: As used herein, “protein cleavage site” refers to a site where controlled cleavage of the amino acid chain can be accomplished by chemical, enzymatic or photochemical means.

Protein cleavage signal: As used herein “protein cleavage signal” refers to at least one amino acid that flags or marks a polypeptide for cleavage.

Protein of interest: As used herein, the terms “proteins of interest” or “desired proteins” include those provided herein and fragments, mutants, variants, and alterations thereof.

Proximal: As used herein, the term “proximal” means situated nearer to the center or to a point or region of interest.

Purified: As used herein, “purify,” “purified,” “purification” means to make substantially pure or clear from unwanted components, material defilement, admixture or imperfection.

Sample: As used herein, the term “sample” or “biological sample” refers to a subset of its tissues, cells or component parts (e.g. body fluids, including but not limited to blood, mucus, lymphatic fluid, synovial fluid, cerebrospinal fluid, saliva, amniotic fluid, amniotic cord blood, urine, vaginal fluid and semen). A sample further may include a homogenate, lysate or extract prepared from a whole organism or a subset of its tissues, cells or component parts, or a fraction or portion thereof, including but not limited to, for example, plasma, serum, spinal fluid, lymph fluid, the external sections of the skin, respiratory, intestinal, and genitourinary tracts, tears, saliva, milk, blood cells, tumors, organs. A sample further refers to a medium, such as a nutrient broth or gel, which may contain cellular components, such as proteins or nucleic acid molecule.

Signal Sequences: As used herein, the phrase “signal sequences” refers to a sequence which can direct the transport or localization of a protein.

Significant or Significantly: As used herein, the terms “significant” or “significantly” are used synonymously with the term “substantially.”

Single unit dose: As used herein, a “single unit dose” is a dose of any therapeutic administered in one dose/at one time/single route/single point of contact, i.e., single administration event.

Similarity: As used herein, the term “similarity” refers to the overall relatedness between polymeric molecules, e.g. between polynucleotide molecules (e.g. DNA molecules and/or RNA molecules) and/or between polypeptide molecules. Calculation of percent similarity of polymeric molecules to one another can be performed in the same manner as a calculation of percent identity, except that calculation of percent similarity takes into account conservative substitutions as is understood in the art.

Split dose: As used herein, a “split dose” is the division of single unit dose or total daily dose into two or more doses.

Stable: As used herein “stable” refers to a compound that is sufficiently robust to survive isolation to a useful degree of purity from a reaction mixture, and preferably capable of formulation into an efficacious therapeutic agent.

Stabilized: As used herein, the term “stabilize”, “stabilized,” “stabilized region” means to make or become stable.

Subject: As used herein, the term “subject” or “patient” refers to any organism to which a composition in accordance with the invention may be administered, e.g., for experimental, diagnostic, prophylactic, and/or therapeutic purposes. Typical subjects include animals (e.g., mammals such as mice, rats, rabbits, non-human primates, and humans) and/or plants.

Substantially. As used herein, the term “substantially” refers to the qualitative condition of exhibiting total or near-total extent or degree of a characteristic or property of interest. One of ordinary skill in the biological arts will understand that biological and chemical phenomena rarely, if ever, go to completion and/or proceed to completeness or achieve or avoid an absolute result. The term “substantially” is therefore used herein to capture the potential lack of completeness inherent in many biological and chemical phenomena.

Substantially equal: As used herein as it relates to time differences between doses, the term means plus/minus 2%.

Substantially simultaneously: As used herein and as it relates to plurality of doses, the term means within 2 seconds.

Suffering from: An individual who is “suffering from” a disease, disorder, and/or condition has been diagnosed with or displays one or more symptoms of a disease, disorder, and/or condition.

Susceptible to: An individual who is “susceptible to” a disease, disorder, and/or condition has not been diagnosed with and/or may not exhibit symptoms of the disease, disorder, and/or condition but harbors a propensity to develop a disease or its symptoms. In some embodiments, an individual who is susceptible to a disease, disorder, and/or condition (for example, cancer) may be characterized by one or more of the following: (1) a genetic mutation associated with development of the disease, disorder, and/or condition; (2) a genetic polymorphism associated with development of the disease, disorder, and/or condition; (3) increased and/or decreased expression and/or activity of a protein and/or nucleic acid associated with the disease, disorder, and/or condition; (4) habits and/or lifestyles associated with development of the disease, disorder, and/or condition; (5) a family history of the disease, disorder, and/or condition; and (6) exposure to and/or infection with a microbe associated with development of the disease, disorder, and/or condition. In some embodiments, an individual who is susceptible to a disease, disorder, and/or condition will develop the disease, disorder, and/or condition. In some embodiments, an individual who is susceptible to a disease, disorder, and/or condition will not develop the disease, disorder, and/or condition.

Synthetic: The term “synthetic” means produced, prepared, and/or manufactured by the hand of man. Synthesis of polynucleotides or polypeptides or other molecules of the present invention may be chemical or enzymatic.

Targeted Cells: As used herein, “targeted cells” refers to any one or more cells of interest. The cells may be found in vitro, in vivo, in situ or in the tissue or organ of an organism. The organism may be an animal, preferably a mammal, more preferably a human and most preferably a patient.

Therapeutic Agent: The term “therapeutic agent” refers to any agent that, when administered to a subject, has a therapeutic, diagnostic, and/or prophylactic effect and/or elicits a desired biological and/or pharmacological effect.

Therapeutically effective amount: As used herein, the term “therapeutically effective amount” means an amount of an agent to be delivered (e.g., nucleic acid, drug, therapeutic agent, diagnostic agent, prophylactic agent) that is sufficient, when administered to a subject suffering from or susceptible to an infection, disease, disorder, and/or condition, to treat, improve symptoms of, diagnose, prevent, and/or delay the onset of the infection, disease, disorder, and/or condition.

Therapeutically effective outcome: As used herein, the term “therapeutically effective outcome” means an outcome that is sufficient in a subject suffering from or susceptible to an infection, disease, disorder, and/or condition, to treat, improve symptoms of, diagnose, prevent, and/or delay the onset of the infection, disease, disorder, and/or condition.

Total daily dose: As used herein, a “total daily dose” is an amount given or prescribed in 24 hr period. It may be administered as a single unit dose.

Transcription factor: As used herein, the term “transcription factor” refers to a DNA-binding protein that regulates transcription of DNA into RNA, for example, by activation or repression of transcription. Some transcription factors effect regulation of transcription alone, while others act in concert with other proteins. Some transcription factor can both activate and repress transcription under certain conditions. In general, transcription factors bind a specific target sequence or sequences highly similar to a specific consensus sequence in a regulatory region of a target gene. Transcription factors may regulate transcription of a target gene alone or in a complex with other molecules.

Treating: As used herein, the term “treating” refers to partially or completely alleviating, ameliorating, improving, relieving, delaying onset of, inhibiting progression of, reducing severity of, and/or reducing incidence of one or more symptoms or features of a particular infection, disease, disorder, and/or condition. For example, “treating” cancer may refer to inhibiting survival, growth, and/or spread of a tumor. Treatment may be administered to a subject who does not exhibit signs of a disease, disorder, and/or condition and/or to a subject who exhibits only early signs of a disease, disorder, and/or condition for the purpose of decreasing the risk of developing pathology associated with the disease, disorder, and/or condition.

Unaltered: As used herein, “unaltered” refers to any substance, compound or molecule prior to being changed in any way. Unaltered may, but does not always, refer to the wild type or native form of a biomolecule. Molecules may undergo a series of alterations whereby each alternative molecule may serve as the “unaltered” starting molecule for a subsequent alteration.

Equivalents and Scope

Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments in accordance with the invention described herein. The scope of the present invention is not intended to be limited to the above Description, but rather is as set forth in the appended claims.

In the claims, articles such as “a,” “an,” and “the” may mean one or more than one unless indicated to the contrary or otherwise evident from the context. Claims or descriptions that include “or” between one or more members of a group are considered satisfied if one, more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process unless indicated to the contrary or otherwise evident from the context. The invention includes embodiments in which exactly one member of the group is present in, employed in, or otherwise relevant to a given product or process. The invention includes embodiments in which more than one, or all of the group members are present in, employed in, or otherwise relevant to a given product or process.

It is also noted that the term “comprising” is intended to be open and permits but does not require the inclusion of additional elements or steps. When the term “comprising” is used herein, the term “consisting of” is thus also encompassed and disclosed.

Where ranges are given, endpoints are included. Furthermore, it is to be understood that unless otherwise indicated or otherwise evident from the context and understanding of one of ordinary skill in the art, values that are expressed as ranges can assume any specific value or subrange within the stated ranges in different embodiments of the invention, to the tenth of the unit of the lower limit of the range, unless the context clearly dictates otherwise.

In addition, it is to be understood that any particular embodiment of the present invention that falls within the prior art may be explicitly excluded from any one or more of the claims. Since such embodiments are deemed to be known to one of ordinary skill in the art, they may be excluded even if the exclusion is not set forth explicitly herein. Any particular embodiment of the compositions of the invention (e.g., any nucleic acid or protein encoded thereby; any method of production; any method of use; etc.) can be excluded from any one or more claims, for any reason, whether or not related to the existence of prior art.

All cited sources, for example, references, publications, databases, database entries, and art cited herein, are incorporated into this application by reference, even if not expressly stated in the citation. In case of conflicting statements of a cited source and the instant application, the statement in the instant application shall control.

EXAMPLES

The present disclosure is further described in the following examples, which do not limit the scope of the disclosure described in the claims.

Example 1: PCR for cDNA Production

PCR procedures for the preparation of cDNA are performed using 2×KAPA HIFI™ HotStart ReadyMix by Kapa Biosystems (Woburn, Mass.). This system includes 2×KAPA ReadyMix12.5 μl; Forward Primer (10 μM) 0.75 μl; Reverse Primer (10 μM) 0.75 μl; Template cDNA 100 ng; and dH₂O diluted to 25.0 μl. The reaction conditions are at 95° C. for 5 min. and 25 cycles of 98° C. for 20 sec, then 58° C. for 15 sec, then 72° C. for 45 sec, then 72° C. for 5 min. then 4° C. to termination.

The reverse primer of the instant invention incorporates a poly-T₁₂₀ for a poly-A₁₂₀ in the mRNA. Other reverse primers with longer or shorter poly-T tracts can be used to adjust the length of the poly-A tail in the mRNA.

The reaction is cleaned up using Invitrogen's PURELINK™ PCR Micro Kit (Carlsbad, Calif.) per manufacturer's instructions (up to 5 μg). Larger reactions will require a cleanup using a product with a larger capacity. Following the cleanup, the cDNA is quantified using the NanoDrop and analyzed by agarose gel electrophoresis to confirm the cDNA is the expected size. The cDNA is then submitted for sequencing analysis before proceeding to the in vitro transcription reaction.

Example 2. In Vitro Transcription (IVT)

A. Materials and Methods

Alternative mRNAs according to the invention are made using standard laboratory methods and materials for in vitro transcription with the exception that the nucleotide mix contains alternative nucleotides. The open reading frame (ORF) of the gene of interest may be flanked by a 5′ untranslated region (UTR) containing a strong Kozak translational initiation signal and an alpha-globin 3′ UTR terminating with an oligo(dT) sequence for templated addition of a polyA tail for mRNAs not incorporating adenosine analogs. Adenosine-containing mRNAs are synthesized without an oligo (dT) sequence to allow for post-transcription poly (A) polymerase poly-(A) tailing.

The ORF may also include various upstream or downstream additions (such as, but not limited to, β-globin, tags) may be ordered from an optimization service such as, but limited to, DNA2.0 (Menlo Park, Calif.) and may contain multiple cloning sites which may have XbaI recognition. Upon receipt of the construct, it may be reconstituted and transformed into chemically competent E. coli.

For the present invention, NEB DH5-alpha Competent E. coli may be used. Transformations are performed according to NEB instructions using 100 ng of plasmid. The protocol is as follows:

Thaw a tube of NEB 5-alpha Competent E. coli cells on ice for 10 minutes.

Add 1-5 μl containing 1 pg-100 ng of plasmid DNA to the cell mixture. Carefully flick the tube 4-5 times to mix cells and DNA. Do not vortex.

Place the mixture on ice for 30 minutes. Do not mix.

Heat shock at 42° C. for exactly 30 seconds. Do not mix.

Place on ice for 5 minutes. Do not mix.

Pipette 950 μl of room temperature SOC into the mixture.

Place at 37° C. for 60 minutes. Shake vigorously (250 rpm) or rotate.

Warm selection plates to 37° C.

Mix the cells thoroughly by flicking the tube and inverting.

Spread 50-100 μl of each dilution onto a selection plate and incubate overnight at 37° C. Alternatively, incubate at 30° C. for 24-36 hours or 25° C. for 48 hours.

A single colony is then used to inoculate 5 ml of LB growth media using the appropriate antibiotic and then allowed to grow (250 RPM, 37° C.) for 5 hours. This is then used to inoculate a 200 ml culture medium and allowed to grow overnight under the same conditions.

To isolate the plasmid (up to 850 μg), a maxi prep is performed using the Invitrogen PURELINK™ HiPure Maxiprep Kit (Carlsbad, Calif.), following the manufacturer's instructions.

In order to generate cDNA for In Vitro Transcription (IVT), the plasmid is first linearized using a restriction enzyme such as XbaI. A typical restriction digest with XbaI will comprise the following: Plasmid 1.0 μg; 10× Buffer 1.0 μl; XbaI 1.5 μl; d H₂O up to 10 μl; incubated at 37° C. for 1 hr. If performing at lab scale (<5 μg), the reaction is cleaned up using Invitrogen's PURELINK™ PCR Micro Kit (Carlsbad, Calif.) per manufacturer's instructions. Larger scale purifications may need to be done with a product that has a larger load capacity such as Invitrogen's standard PURELINK™ PCR Kit (Carlsbad, Calif.). Following the cleanup, the linearized vector is quantified using the NanoDrop and analyzed to confirm linearization using agarose gel electrophoresis.

IVT Reaction

The in vitro transcription reaction generates mRNA containing alternative nucleotides or alternative RNA. The input nucleotide triphosphate (NTP) mix is made in-house using natural and un-natural NTPs.

A typical in vitro transcription reaction includes the following:

Template cDNA 1.0 μg 10x transcription buffer (400 mM Tris-HCI pH 8.0, 2.0 μl 190 mM MgCl₂, 50 mM DTT, 10 mM Spermidine) Custom NTPs (25mM each 7.2 μl RNase Inhibitor 20 U T7 RNA polymerase 3000 U dH₂O up to 20.0 μl

Incubation at 37° C. for 3 hr-5 hrs.

The crude IVT mix may be stored at 4° C. overnight for cleanup the next day. 1 U of RNase-free DNase is then used to digest the original template. After 15 minutes of incubation at 37° C., the mRNA is purified using Ambion's MEGACLEAR™ Kit (Austin, Tex.) following the manufacturer's instructions. This kit can purify up to 500 μg of RNA. Following the cleanup, the RNA is quantified using the NanoDrop and analyzed by agarose gel electrophoresis to confirm the RNA is the proper size and that no degradation of the RNA has occurred.

The T7 RNA polymerase may be selected from, T7 RNA polymerase, T3 RNA polymerase and mutant polymerases such as, but not limited to, the novel polymerases able to incorporate alternative NTPs as well as those polymerases described by Liu (Esvelt et al. (Nature (2011) 472(7344):499-503 and U.S. Publication No. 20110177495) which recognize alternate promoters, Ellington (Chelliserrykattil and Ellington, Nature Biotechnology (2004) 22(9):1155-1160) describing a T7 RNA polymerase variant to transcribe 2′-O-methyl RNA and Sousa (Padilla and Sousa, Nucleic Acids Research (2002) 30(24): e128) describing a T7 RNA polymerase double mutant; herein incorporated by reference in their entireties.

B. Agarose Gel Electrophoresis of Alternative mRNA

Individual alternative mRNAs (200-400 ng in a 20 μl volume) are loaded into a well on a non-denaturing 1.2% Agarose E-Gel (Invitrogen, Carlsbad, Calif.) and run for 12-15 minutes according to the manufacturer protocol.

C. Agarose Gel Electrophoresis of RT-PCR Products

Individual reverse transcribed-FOR products (200-400 ng) are loaded into a well of a non-denaturing 1.2% Agarose E-Gel (Invitrogen, Carlsbad, Calif.) and run for 12-15 minutes according to the manufacturer protocol.

D. Nanodrop Alternative mRNA Quantification and UV Spectral Data

Alternative mRNAs in TE buffer (1 μl) are used for Nanodrop UV absorbance readings to quantitate the yield of each alternative mRNA from an in vitro transcription reaction (UV absorbance traces are not shown).

Example 3. Enzymatic Capping of mRNA

Capping of the mRNA is performed as follows where the mixture includes: IVT RNA 60 μg-180 μg and dH₂O up to 72 μl. The mixture is incubated at 65° C. for 5 minutes to denature RNA, and then is transferred immediately to ice.

The protocol then involves the mixing of 10× Capping Buffer (0.5 M Tris-HCl (pH 8.0), 60 mM KCl, 12.5 mM MgCl₂) (10.0 μl); 20 mM GTP (5.0 μl); 20 mM S-Adenosyl Methionine (2.5 μl); RNase Inhibitor (100 U); 2′-O-Methyltransferase (400U); Vaccinia capping enzyme (Guanylyl transferase) (40 U); dH₂O (Up to 28 μl); and incubation at 37° C. for 30 minutes for 60 μg RNA or up to 2 hours for 180 μg of RNA.

The mRNA is then purified using Ambion's MEGACLEAR™ Kit (Austin, Tex.) following the manufacturer's instructions. Following the cleanup, the RNA is quantified using the NANODROP™ (ThermoFisher, Waltham, Mass.) and analyzed by agarose gel electrophoresis to confirm the RNA is the proper size and that no degradation of the RNA has occurred. The RNA product may also be sequenced by running a reverse-transcription-PCR to generate the cDNA for sequencing.

Example 4. 5′-Guanosine Capping

A. Materials and Methods

The cloning, gene synthesis and vector sequencing may be performed by DNA2.0 Inc. (Menlo Park, Calif.). The ORF is restriction digested using XbaI and used for cDNA synthesis using tailed-or tail-less-PCR. The tailed-PCR cDNA product is used as the template for the alternative mRNA synthesis reaction using 25 mM each alternative nucleotide mix (all alternative nucleotides may be custom synthesized or purchased from TriLink Biotech, San Diego, Calif. except pyrrolo-C triphosphate which may be purchased from Glen Research, Sterling Va.; unmodifed nucleotides are purchased from Epicenter Biotechnologies, Madison, Wis.) and CellScript MEGASCRIPT™ (Epicenter Biotechnologies, Madison, Wis.) complete mRNA synthesis kit.

The in vitro transcription reaction is run for 4 hours at 37° C. Alternative mRNAs incorporating adenosine analogs are poly (A) tailed using yeast Poly (A) Polymerase (Affymetrix, Santa Clara, Calif.). The PCR reaction uses HiFi PCR 2× MASTER MIX™ (Kapa Biosystems, Woburn, Mass.). Alternative mRNAs are post-transcriptionally capped using recombinant Vaccinia Virus Capping Enzyme (New England BioLabs, Ipswich, Mass.) and a recombinant 2′-O-methyltransferase (Epicenter Biotechnologies, Madison, Wis.) to generate the 5′-guanosine Cap1 structure. Cap 2 structure and Cap 2 structures may be generated using additional 2′-O-methyltransferases. The In vitro transcribed mRNA product is run on an agarose gel and visualized. Alternative mRNA may be purified with Ambion/Applied Biosystems (Austin, Tex.) MEGAClear RNA™ purification kit. The PCR uses PURELINK™ PCR purification kit (Invitrogen, Carlsbad, Calif.). The product is quantified on NANODROP™ UV Absorbance (ThermoFisher, Waltham, Mass.). Quality, UV absorbance quality and visualization of the product was performed on an 1.2% agarose gel. The product is resuspended in TE buffer.

B. 5′ Capping Alternative Nucleic Acid (mRNA) Structure

5′-capping of alternative mRNA may be completed concomitantly during the in vitro-transcription reaction using the following chemical RNA cap analogs to generate the 5′-guanosine cap structure according to manufacturer protocols: 3″-O-Me-m⁷G(5′)ppp(5′)G (the ARCA cap); G(5′)ppp(5′)A; G(5′)ppp(5′)G; m⁷G(5′)ppp(5′)A; m⁷G(5′)ppp(5′)G (New England BioLabs, Ipswich, Mass.). 5′-capping of alternative mRNA may be completed post-transcriptionally using a Vaccinia Virus Capping Enzyme to generate the “Cap 0” structure: m⁷G(5′)ppp(5′)G (New England BioLabs, Ipswich, Mass.). Cap 1 structure may be generated using both Vaccinia Virus Capping Enzyme and a 2′-O methyl-transferase to generate: m7G(5′)ppp(5′)G-2′-O-methyl. Cap 2 structure may be generated from the Cap 1 structure followed by the 2′-o-methylation of the 5′-antepenultimate nucleotide using a 2′-O methyl-transferase. Cap 3 structure may be generated from the Cap 2 structure followed by the 2′-o-methylation of the 5′-preantepenultimate nucleotide using a 2′-O methyl-transferase. Enzymes are preferably derived from a recombinant source.

When transfected into mammalian cells, the alternative mRNAs have a stability of 12-18 hours or more than 18 hours, e.g., 24, 36, 48, 60, 72 or greater than 72 hours.

Example 5. PolyA Tailing Reaction

Without a poly-T in the cDNA, a poly-A tailing reaction must be performed before cleaning the final product. This is done by mixing Capped IVT RNA (100 μl); RNase Inhibitor (20 U); 10× Tailing Buffer (0.5 M Tris-HCl (pH 8.0), 2.5 M NaCl, 100 mM MgCl₂)(12.0 μl); 20 mM ATP (6.0 μl); Poly-A Polymerase (20 U); dH₂O up to 123.5 μl and incubation at 37° C. for 30 min. If the poly-A tail is already in the transcript, then the tailing reaction may be skipped and proceed directly to cleanup with Ambion's MEGACLEAR™ kit (Austin, Tex.) (up to 500 μg). Poly-A Polymerase is preferably a recombinant enzyme expressed in yeast.

For studies performed and described herein, the poly-A tail is encoded in the IVT template to comprise 160 nucleotides in length. However, it should be understood that the processivity or integrity of the poly-A tailing reaction may not always result in exactly 160 nucleotides. Hence poly-A tails of approximately 160 nucleotides, acid about 150-165, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164 or 165 are within the scope of the invention.

Example 6. Method of Screening for Protein Expression

A. Electrospray Ionization

A biological sample which may contain proteins encoded by alternative RNA administered to the subject is prepared and analyzed according to the manufacturer protocol for electrospray ionization (ESI) using 1, 2, 3 or 4 mass analyzers. A biologic sample may also be analyzed using a tandem ESI mass spectrometry system.

Patterns of protein fragments, or whole proteins, are compared to known controls for a given protein and identity is determined by comparison.

B. Matrix-Assisted Laser Desorption/Ionization

A biological sample which may contain proteins encoded by alternative RNA administered to the subject is prepared and analyzed according to the manufacturer protocol for matrix-assisted laser desorption/ionization (MALDI).

Patterns of protein fragments, or whole proteins, are compared to known controls for a given protein and identity is determined by comparison.

C. Liquid Chromatography-Mass Spectrometry-Mass Spectrometry

A biological sample, which may contain proteins encoded by alternative RNA, may be treated with a trypsin enzyme to digest the proteins contained within. The resulting peptides are analyzed by liquid chromatography-mass spectrometry-mass spectrometry (LC/MS/MS). The peptides are fragmented in the mass spectrometer to yield diagnostic patterns that can be matched to protein sequence databases via computer algorithms. The digested sample may be diluted to achieve 1 ng or less starting material for a given protein. Biological samples containing a simple buffer background (e.g. water or volatile salts) are amenable to direct in-solution digest; more complex backgrounds (e.g. detergent, non-volatile salts, glycerol) require an additional clean-up step to facilitate the sample analysis.

Patterns of protein fragments, or whole proteins, are compared to known controls for a given protein and identity is determined by comparison.

Example 7. Transfection

A. Reverse Transfection

For experiments performed in a 24-well collagen-coated tissue culture plate, Keratinocytes or other cells are seeded at a cell density of 1×10⁵. For experiments performed in a 96-well collagen-coated tissue culture plate, Keratinocytes are seeded at a cell density of 0.5×10⁵. For each alternative mRNA to be transfected, alternative mRNA: RNAIMAX™ are prepared as described and mixed with the cells in the multi-well plate within 6 hours of cell seeding before cells had adhered to the tissue culture plate.

B. Forward Transfection

In a 24-well collagen-coated tissue culture plate, Cells are seeded at a cell density of 0.7×10⁵. For experiments performed in a 96-well collagen-coated tissue culture plate, Keratinocytes, if used, are seeded at a cell density of 0.3×10⁵. Cells are then grown to a confluency of >70% for over 24 hours. For each alternative mRNA to be transfected, alternative mRNA: RNAIMAX™ are prepared as described and transfected onto the cells in the multi-well plate over 24 hours after cell seeding and adherence to the tissue culture plate.

C. Translation Screen: ELISA

Cells are grown in EpiLife medium with Supplement S7 from Invitrogen at a confluence of >70%. Cells are reverse transfected with 300 ng of the indicated chemically alternative mRNA complexed with RNAIMAX™ from Invitrogen. Alternatively, cells are forward transfected with 300 ng alternative mRNA complexed with RNAIMAX™ from Invitrogen. The RNA: RNAIMAX™ complex is formed by first incubating the RNA with Supplement-free EPILIFE® media in a 5× volumetric dilution for 10 minutes at room temperature.

In a second vial, RNAIMAX™ reagent is incubated with Supplement-free EPILIFE® Media in a 10× volumetric dilution for 10 minutes at room temperature. The RNA vial is then mixed with the RNAIMAX™ vial and incubated for 20-30 at room temperature before being added to the cells in a drop-wise fashion. Secreted polypeptide concentration in the culture medium is measured at 18 hours post-transfection for each of the alternative mRNAs in triplicate. Secretion of the polypeptide of interest from transfected human cells is quantified using an ELISA kit from Invitrogen or R&D Systems (Minneapolis, Minn.) following the manufacturers recommended instructions.

D. Dose and Duration: ELISA

Cells are grown in EPILIFE® medium with Supplement S7 from Invitrogen at a confluence of >70%. Cells are reverse transfected with 0 ng, 46.875 ng, 93.75 ng, 187.5 ng, 375 ng, 750 ng, or 1500 ng alternative mRNA complexed with RNAIMAX™ from Invitrogen. The alternative mRNA: RNAIMAX™ complex is formed as described. Secreted polypeptide concentration in the culture medium is measured at 0, 6, 12, 24, and 48 hours post-transfection for each concentration of each alternative mRNA in triplicate. Secretion of the polypeptide of interest from transfected human cells is quantified using an ELISA kit from Invitrogen or R&D Systems following the manufacturers recommended instructions.

Example 8. Cellular Innate Immune Response: IFN-Beta ELISA and TNF-Alpha ELISA

An enzyme-linked immunosorbent assay (ELISA) for Human Tumor Necrosis Factor-α (TNF-α), Human Interferon-β (IFN-β) and Human Granulocyte-Colony Stimulating Factor (G-CSF) secreted from in vitro-transfected Human Keratinocyte cells is tested for the detection of a cellular innate immune response.

Cells are grown in EPILIFE® medium with Human Growth Supplement in the absence of hydrocortisone from Invitrogen at a confluence of >70%. Cells are reverse transfected with 0 ng, 93.75 ng, 187.5 ng, 375 ng, 750 ng, 1500 ng or 3000 ng of the indicated alternative mRNA complexed with RNAIMAX™ from Invitrogen as described in triplicate. Secreted TNF-α in the culture medium is measured 24 hours post-transfection for each of the alternative mRNAs using an ELISA kit from Invitrogen according to the manufacturer protocols.

Secreted IFN-β is measured 24 hours post-transfection for each of the alternative mRNAs using an ELISA kit from Invitrogen according to the manufacturer protocols. Secreted hu-G-CSF concentration is measured at 24 hours post-transfection for each of the alternative mRNAs. Secretion of the polypeptide of interest from transfected human cells is quantified using an ELISA kit from Invitrogen or R&D Systems (Minneapolis, Minn.) following the manufacturers recommended instructions. These data indicate which alternative mRNA are capable eliciting a reduced cellular innate immune response in comparison to natural and other alternative polynucleotides or reference compounds by measuring exemplary type 1 cytokines such as TNF-alpha and IFN-beta.

Example 9. Cytotoxicity and Apoptosis

This experiment demonstrates cellular viability, cytotoxity and apoptosis for distinct alternative mRNA-in vitro transfected Human Keratinocyte cells. Keratinocytes are grown in EPILIFE® medium with Human Keratinocyte Growth Supplement in the absence of hydrocortisone from Invitrogen at a confluence of >70%. Keratinocytes are reverse transfected with 0 ng, 46.875 ng, 93.75 ng, 187.5 ng, 375 ng, 750 ng, 1500 ng, 3000 ng, or 6000 ng of alternative mRNA complexed with RNAIMAX™ from Invitrogen. The alternative mRNA: RNAIMAX™ complex is formed. Secreted huG-CSF concentration in the culture medium is measured at 0, 6, 12, 24, and 48 hours post-transfection for each concentration of each alternative mRNA in triplicate. Secretion of the polypeptide of interest from transfected human keratinocytes is quantified using an ELISA kit from Invitrogen or R&D Systems following the manufacturers recommended instructions. Cellular viability, cytotoxicity and apoptosis is measured at 0, 12, 48, 96, and 192 hours post-transfection using the APOTOX-GLO™ kit from Promega (Madison, Wis.) according to manufacturer instructions.

Example 10. Incorporation of Naturally and Non-Naturally Occurring Nucleosides

Naturally and non-naturally occurring nucleosides are incorporated into mRNA encoding a polypeptide of interest. Examples of these are given in Tables 4 and 5. Certain commercially available nucleoside triphosphates (NTPs) are investigated in the polynucleotides of the invention. A selection of these is given in Table 13. The resultant mRNAs are then examined for their ability to produce protein, induce cytokines, and/or produce a therapeutic outcome.

TABLE 13 Naturally occurring nucleotides. Naturally Chemistry Alteration Compound # occuring 2′-O-methylcytidine TP 00901074001 Y 4-thiouridine TP 00901013011 Y 2′-O-methyluridine TP 00901073001 Y 5-methyl-2-thiouridine TP 00901013003 Y 5,2′-O-dimethyluridine TP 03601073014 Y 5-aminomethyl-2-thiouridine TP 00901013015 Y 5,2′-O-dimethylcytidine TP 00901074002 Y 2-methylthio-N6-isopentenyladenosine TP 00901011015 Y 2′-O-methyladenosine TP 00901071001 Y 2′-O-methylguanosine TP 00901072001 Y N6-methyl-N6-threonylcarbamoyladenosine 03601011016 Y TP N6-hydroxynorvalylcarbamoyladenosine TP 00901011017 Y 2-methylthio-N6-hydroxynorvalyl 00901011018 Y carbamoyladenosine TP 2′-O-ribosyladenosine (phosphate) TP 00901461001 Y N6,2′-O-dimethyladenosine TP 00901071006 Y N6,N6,2′-O-trimethyladenosine TP 00901071012 Y 1,2′-O-dimethyladenosine TP 00901071008 Y N6-acetyladenosine TP 00901011013 Y 2-methyladenosine TP 00901011014 Y 2-methylthio-N6-methyladenosine TP 00901011019 Y N2,2′-O-dimethylguanosine TP 03601072014 Y N2,N2,2′-O-trimethylguanosine TP 03601072015 Y 7-cyano-7-deazaguanosine TP 03601012016 Y 7-aminomethyl-7-deazaguanosine TP 03601012017 Y 2′-O-ribosylguanosine (phosphate) TP 00901462001 Y N2,7-dimethylguanosine TP 00901012018 Y N2,N2,7-trimethylguanosine TP 03601012019 Y 1,2′-O-dimethylguanosine TP 03601072008 Y Peroxywybutosine TP 00901012023 Y Hydroxywybutosine TP 00901012024 Y undermodified hydroxywybutosine TP 00901012025 Y Methylwyosine TP 00901012026 Y N2,7,2′-O-trimethylguanosine TP 00901072018 Y 1,2′-O-dimethylinosine TP 00901072027 Y 2′-O-methylinosine TP 00901072028 Y 4-demethylwyosine TP 00901012029 Y Isowyosine TP 00901012030 Y Queuosine TP 00901012031 Y Epoxyqueuosine TP 00901012032 Y galactosyl-queuosine TP 00901012033 Y mannosyl-queuosine TP 00901012034 Y Archaeosine TP 00901012035 Y

Non-natural nucleotides of the present invention may also include those listed below in Table 14.

TABLE 14 Non-naturally occurring nucleotides. Naturally Chemistry Alteration Compound # occurring 5-(1-Propynyl)ara-uridine TP 036012293016 N 2′-O-Methyl-5-(1-propynyl)uridine TP 03601073016 N 2′-O-Methyl-5-(1-propynyl)cytidine TP 03601074012 N 5-(1-Propynyl)ara-cytidine TP 03601294012 N 5-Ethynylara-cytidine TP 03601294011 N 5-Ethynylcytidine TP 03601014011 N 5-Vinylarauridine TP 03601013017 N (Z)-5-(2-Bromo-vinyl)ara-uridine TP 03601293018 N (E)-5-(2-Bromo-vinyl)ara-uridine TP 03601293019 N (Z)-5-(2-Bromo-vinyl)uridine TP 03601013018 N (E)-5-(2-Bromo-vinyl)uridine TP 03601013019 N 5-Methoxycytidine TP 03601014030 N 5-Formyluridine TP 03601013020 N 5-Cyanouridine TP 03601013021 N 5-Dimethylaminouridine TP 03601013022 N 5-Trideuteromethyl-6-deuterouridine TP 03601013023 N 5-Cyanocytidine TP 03601014031 N 5-(2-Chloro-phenyl)-2-thiocytidine TP 03601014032 N 5-(4-Amino-phenyl)-2-thiocytidine TP 03601014033 N 5-(2-Furanyl)uridine TP 03601013024 N 5-Phenylethynyluridine TP 03601013025 N N4,2′-O-Dimethylcytidine TP 00901074004 N 3′-Ethynylcytidine TP 00901304001 N 4′-Carbocyclic adenosine TP 00901171001 N 4′-Carbocyclic cytidine TP 00901174001 N 4′-Carbocyclic guanosine TP 00901172001 N 4′-Carbocyclic uridine TP 00901173001 N 4′-Ethynyladenosine TP 00901311001 N 4′-Ethynyluridine TP 00901313001 N 4′-Ethynylcytidine TP 00901314001 N 4′-Ethynylguanosine TP 00901312001 N 4′-Azidouridine TP 00901323001 N 4′-Azidocytidine TP 00901324001 N 4′-Azidoadenosine TP 0090132001 N 4′-Azidoguanosine TP 00901322001 N 2′-Deoxy-2′,2′-difluorocytidine TP 00901334001 N 2′-Deoxy-2′,2′-difluorouridine TP 00901333001 N 2′-Deoxy-2′,2′-difluoroadenosine TP 00901331001 N 2′-Deoxy-2′,2′-difluoroguanosine TP 00901332001 N 2′-Deoxy-2′-b-fluorocytidine TP 00901024001 N 2′-Deoxy-2′-b-fluorouridine TP 00901023001 N 2′-Deoxy-2′-b-fluoroadenosine TP 00901021001 N 2′-Deoxy-2′-b-fluoroguanosine TP 00901022001 N 8-Trifluoromethyladenosine TP 03601011020 N 2′-Deoxy-2′-b-chlorouridine TP 00901033001 N 2′-Deoxy-2′-b-bromouridine TP 00901043001 N 2′-Deoxy-2′-b-iodouridine TP 00901053001 N 2′-Deoxy-2′-b-chlorocytidine TP 00901034001 N 2′-Deoxy-2′-b-bromocytidine TP 00901044001 N 2′-Deoxy-2′-b-iodocytidine TP 00901054001 N 2′-Deoxy-2′-b-chloroadenosine TP 00901031001 N 2′-Deoxy-2′-b-bromoadenosine TP 00901041001 N 2′-Deoxy-2′-b-iodoadenosine TP 00901051001 N 2′-Deoxy-2′-b-chloroguanosine TP 00901032001 N 2′-Deoxy-2′-b-bromoguanosine TP 00901042001 N 2′-Deoxy-2′-b-iodoguanosine TP 00901052001 N 5′-Homo-cytidine TP 00901344001 N 5′-Homo-adenosine TP 00901341001 N 5′-Homo-uridine TP 00901343001 N 5′-Homo-guanosine TP 00901342001 N 2′-Deoxy-2′-a-mercaptouridine TP 00901353001 N 2′-Deoxy-2′-a-thiomethoxyuridine TP 00901363001 N 2′-Deoxy-2′-a-azidouridine TP 00901373001 N 2′-Deoxy-2′-a-aminouridine TP 00901383001 N 2′-Deoxy-2′-a-mercaptocytidine TP 00901354001 N 2′-Deoxy-2′-a-thiomethoxycytidine TP 00901364001 N 2′-Deoxy-2′-a-azidocytidine TP 00901374001 N 2′-Deoxy-2′-a-aminocytidine TP 00901384001 N 2′-Deoxy-2′-a-mercaptoadenosine TP 00901351001 N 2′-Deoxy-2′-a-thiomethoxyadenosine TP 00901361001 N 2′-Deoxy-2′-a-azidoadenosine TP 00901371001 N 2′-Deoxy-2′-a-aminoadenosine TP 00901381001 N 2′-Deoxy-2′-a-mercaptoguanosine TP 00901352001 N 2′-Deoxy-2′-a-thiomethoxyguanosine TP 00901362001 N 2′-Deoxy-2′-a-azidoguanosine TP 00901372001 N 2′-Deoxy-2′-a-aminoguanosine TP 00901382001 N 2′-Deoxy-2′-b-mercaptouridine TP 00901393001 N 2′-Deoxy-2′-b-thiomethoxyuridine TP 00901403001 N 2′-Deoxy-2′-b-azidouridine TP 00901413001 N 2′-Deoxy-2′-b-aminouridine TP 00901423001 N 2′-Deoxy-2′-b-mercaptocytidine TP 00901394001 N 2′-Deoxy-2′-b-thiomethoxycytidine TP 00901404001 N 2′-Deoxy-2′-b-azidocytidine TP 00901414001 N 2′-Deoxy-2′-b-aminocytidine TP 00901424001 N 2′-Deoxy-2′-b-mercaptoadenosine TP 00901391001 N 2′-Deoxy-2′-b-thiomethoxyadenosine TP 00901401001 N 2′-Deoxy-2′-b-azidoadenosine TP 00901411001 N 2′-Deoxy-2′-b-aminoadenosine TP 00901421001 N 2′-Deoxy-2′-b-mercaptoguanosine TP 00901392001 N 2′-Deoxy-2′-b-thiomethoxyguanosine TP 00901402001 N 2′-Deoxy-2′-b-azidoguanosine TP 00901412001 N 2′-Deoxy-2′-b-aminoguanosine TP 00901422001 N 2′-b-Trifluoromethyladenosine TP 00901431001 N 2′-b-Trifluoromethylcytidine TP 00901434001 N 2′-b-Trifluoromethylguanosine TP 00901432001 N 2′-b-Trifluoromethyluridine TP 00901433001 N 2′-a-Trifluoromethyladenosine TP 00901441001 N 2′-a-Trifluoromethylcytidine TP 00901444001 N 2′-a-Trifluoromethylguanosine TP 00901442001 N 2′-a-Trifluoromethyluridine TP 00901443001 N 2′-b-Ethynyladenosine TP 00901441001 N 2′-b-Ethynylcytidine TP 00901444001 N 2′-b-Ethynylguanosine TP 00901442001 N 2′-b-Ethynyluridine TP 00901443001 N 2′-a-Ethynyladenosine TP 00901451001 N 2′-a-Ethynylcytidine TP 00901454001 N 2′-a-Ethynylguanosine TP 00901452001 N 2′-a-Ethynyluridine TP 00901453001 N (E)-5-(2-Bromo-vinyl)cytidine TP 03601014034 N 2-Trifluoromethyladenosine TP 03601011021 N 2-Mercaptoadenosine TP 03601011022 N 2-Aminoadenosine TP 03601011002 N 2-Azidoadenosine TP 03601011023 N 2-Fluoroadenosine TP 03601011024 N 2-Chloroadenosine TP 03601011025 N 2-Bromoadenosine TP 03601011026 N 2-Iodoadenosine TP 03601011027 N Formycin A TP 03601011038 N Formycin B TP 03601011039 N Oxoformycin TP 03601011040 N Pyrrolosine TP 03601011037 N 9-Deazaadenosine TP 03601011028 N 9-Deazaguanosine TP 03601012020 N 3-Deazaadenosine TP 03601011029 N 3-Deaza-3-fluoroadenosine TP 03601011030 N 3-Deaza-3-chloroadenosine TP 03601011031 N 3-Deaza-3-bromoadenosine TP 03601011032 N 3-Deaza-3-iodoadenosine TP 03601011033 N 1-Deazaadenosine TP 03601011034 N

Example 11. Directed SAR of Pseudouridine and N1-methyl PseudoUridine

With the recent focus on the pyrimidine nucleoside pseudouridine, a series of structure-activity studies were designed to investigate mRNA containing alterations to pseudouridine or N1-methyl-pseudourdine.

The study was designed to explore the effect of chain length, increased lipophilicity, presence of ring structures, and alteration of hydrophobic or hydrophilic interactions when alterations were made at the N1 position, C6 position, the 2-position, the 4-position and on the phosphate backbone. Stability is also investigated.

To this end, alterations involving alkylation, cycloalkylation, alkyl-cycloalkylation, arylation, alkyl-arylation, alkylation moieties with amino groups, alkylation moieties with carboxylic acid groups, and alkylation moieties containing amino acid charged moieties are investigated. The degree of alkylation is generally C₁-C₆. Examples of the chemistry alterations include those listed in Tables 15, 16 and 17.

TABLE 15 Pseudouridine and N1-methyl Pseudo Uridine SAR. Naturally Chemistry Alteration Compound # occuring N1-Alterations 1-Ethyl-pseudo-UTP 03601015003 N 1-Propyl-pseudo-UTP 03601015004 N 1-iso-propyl-pseudo-UTP 03601015028 N 1-(2,2,2-Trifluoroethyl)-pseudo-UTP 03601015005 N 1-Cyclopropyl-pseudo-UTP 03601015029 N 1-Cyclopropylmethyl-pseudo-UTP 03601015030 N 1-Phenyl-pseudo-UTP 03601015031 N 1-Benzyl-pseudo-UTP 03601015032 N 1-Aminomethyl-pseudo-UTP 03601015033 N Pseudo-UTP-1-2-ethanoic acid 03601015034 N 1-(3-Amino-3-carboxypropyl)pseudo-UTP 03601015035 N 1-Methyl-3-(3-amino-3- 03601015036 Y carboxypropyl)pseudo-UTP C-6 Alterations 6-Methyl-pseudo-UTP 03601015037 N 6-Trifluoromethyl-pseudo-UTP 03601015038 N 6-Methoxy-pseudo-UTP 03601015039 N 6-Phenyl-pseudo-UTP 03601015040 N 6-Iodo-pseudo-UTP 03601015041 N 6-Bromo-pseudo-UTP 03601015042 N 6-Chloro-pseudo-UTP 03601015043 N 6-Fluoro-pseudo-UTP 03601015044 N 2- or 4-position Alterations 4-Thio-pseudo-UTP 00901015022 N 2-Thio-pseudo-UTP 00901015006 N Phosphate backbone Alterations Alpha-thio-pseudo-UTP 00902015001 N 1-Me-alpha-thio-pseudo-UTP 00902015002 N

TABLE 16 Pseudouridine and N1-methyl Pseudo Uridine SAR. Naturally Chemistry Alteration Compound # occuring 1-Methyl-pseudo-UTP 00901015002 Y 1-Butyl-pseudo-UTP 03601015045 N 1-tert-Butyl-pseudo-UTP 03601015046 N 1-Pentyl-pseudo-UTP 03601015047 N 1-Hexyl-pseudo-UTP 03601015048 N 1-Trifluoromethyl-pseudo-UTP 03601015049 Y 1-Cyclobutyl-pseudo-UTP 03601015050 N 1-Cyclopentyl-pseudo-UTP 03601015051 N 1-Cyclohexyl-pseudo-UTP 03601015052 N 1-Cycloheptyl-pseudo-UTP 03601015053 N 1-Cyclooctyl-pseudo-UTP 03601015054 N 1-Cyclobutylmethyl-pseudo-UTP 03601015055 N 1-Cyclopentylmethyl-pseudo-UTP 03601015056 N 1-Cyclohexylmethyl-pseudo-UTP 03601015057 N 1-Cycloheptylmethyl-pseudo-UTP 03601015058 N 1-Cyclooctylmethyl-pseudo-UTP 03601015059 N 1-p-tolyl-pseudo-UTP 03601015060 N 1-(2,4,6-Trimethyl-phenyl)pseudo-UTP 03601015061 N 1-(4-Methoxy-phenyl)pseudo-UTP 03601015062 N 1-(4-Amino-phenyl)pseudo-UTP 03601015063 N 1(4-Nitro-phenyl)pseudo-UTP 03601015064 N Pseudo-UTP-N1-p-benzoic acid 03601015065 N 1-(4-Methyl-benzyl)pseudo-UTP 03601015066 N 1-(2,4,6-Trimethyl-benzyl)pseudo-UTP 03601015067 N 1-(4-Methoxy-benzyl)pseudo-UTP 03601015068 N 1-(4-Amino-benzyl)pseudo-UTP 03601015069 N 1-(4-Nitro-benzyl)pseudo-UTP 03601015070 N Pseudo-UTP-N1-methyl-p-benzoic acid 03601015071 N 1-(2-Amino-ethyl)pseudo-UTP 03601015072 N 1-(3-Amino-propyl)pseudo-UTP 03601015073 N 1-(4-Amino-butyl)pseudo-UTP 03601015074 N 1-(5-Amino-pentyl)pseudo-UTP 03601015075 N 1-(6-Amino-hexyl)pseudo-UTP 03601015076 N Pseudo-UTP-N1-3-propionic acid 03601015077 N Pseudo-UTP-N1-4-butanoic acid 03601015078 N Pseudo-UTP-N1-5-pentanoic acid 03601015079 N Pseudo-UTP-N1-6-hexanoic acid 03601015080 N Pseudo-UTP-N1-7-heptanoic acid 03601015081 N 1-(2-Amino-2-carboxyethyl)pseudo-UTP 03601015082 N 1-(4-Amino-4-carboxybutyl)pseudo-UTP 03601015083 N 3-Alkyl-pseudo-UTP 00901015187 N 6-Ethyl-pseudo-UTP 03601015084 N 6-Propyl-pseudo-UTP 03601015085 N 6-iso-Propyl-pseudo-UTP 03601015086 N 6-Butyl-pseudo-UTP 03601015087 N 6-tert-Butyl-pseudo-UTP 03601015088 N 6-(2,2,2-Trifluoroethyl)-pseudo-UTP 03601015089 N 6-Ethoxy-pseudo-UTP 03601015090 N 6-Trifluoromethoxy-pseudo-UTP 03601015091 N 6-Phenyl-pseudo-UTP 03601015092 N 6-(Substituted-Phenyl)-pseudo-UTP 03601015093 N 6-Cyano-pseudo-UTP 03601015094 N 6-Azido-pseudo-UTP 03601015095 N 6-Amino-pseudo-UTP 03601015096 N 6-Ethylcarboxylate-pseudo-UTP 03601015097 N 6-Hydroxy-pseudo-UTP 03601015098 N 6-Methylamino-pseudo-UTP 03601015099 N 6-Dimethylamino-pseudo-UTP 03601015100 N 6-Hydroxyamino-pseudo-UTP 03601015101 N 6-Formyl-pseudo-UTP 03601015102 N 6-(4-Morpholino)-pseudo-UTP 03601015103 N 6-(4-Thiomorpholino)-pseudo-UTP 03601015104 N 1-Me-4-thio-pseudo-UTP 03601015105 N 1-Me-2-thio-pseudo-UTP 03601015106 N 1,6-Dimethyl-pseudo-UTP 03601015107 N 1-Methyl-6-trifluoromethyl-pseudo-UTP 03601015108 N 1-Methyl-6-ethyl-pseudo-UTP 03601015109 N 1-Methyl-6-propyl-pseudo-UTP 03601015110 N 1-Methyl-6-iso-propyl-pseudo-UTP 03601015111 0 N 1-Methyl-6-butyl-pseudo-UTP 03601015112 N 1-Methyl-6-tert-butyl-pseudo-UTP 03601015113 N 1-Methyl-6-(2,2,2-Trifluoroethyl)pseudo- 03601015114 N UTP 1-Methyl-6-iodo-pseudo-UTP 03601015115 N 1-Methyl-6-bromo-pseudo-UTP 03601015116 N 1-Methyl-6-chloro-pseudo-UTP 03601015117 N 1-Methyl-6-fluoro-pseudo-UTP 03601015118 N 1-Methyl-6-methoxy-pseudo-UTP 03601015119 N 1-Methyl-6-ethoxy-pseudo-UTP 03601015120 N 1-Methyl-6-trifluoromethoxy-pseudo-UTP 03601015121 N 1-Methyl-6-phenyl-pseudo-UTP 03601015122 N 1-Methyl-6-(substituted phenyl)pseudo-UTP 03601015123 N 1-Methyl-6-cyano-pseudo-UTP 03601015124 N 1-Methyl-6-azido-pseudo-UTP 03601015125 N 1-Methyl-6-amino-pseudo-UTP 03601015126 N 1-Methyl-6-ethylcarboxylate-pseudo-UTP 03601015127 N 1-Methyl-6-hydroxy-pseudo-UTP 03601015128 N 1-Methyl-6-methylamino-pseudo-UTP 03601015129 N 1-Methyl-6-dimethylamino-pseudo-UTP 03601015130 N 1-Methyl-6-hydroxyamino-pseudo-UTP 03601015131 N 1-Methyl-6-formyl-pseudo-UTP 03601015132 N 1-Methyl-6-(4-morpholino)-pseudo-UTP 03601015133 N 1-Methyl-6-(4-thiomorpholino)-pseudo-UTP 03601015134 N 1-Alkyl-6-vinyl-pseudo-UTP 03601015188 N 1-Alkyl-6-allyl-pseudo-UTP 03601015189 N 1-Alkyl-6-homoallyl-pseudo-UTP 03601015190 N 1-Alkyl-6-ethynyl-pseudo-UTP 03601015191 N 1-Alkyl-6-(2-propynyl)-pseudo-UTP 03601015192 N 1-Alkyl-6-(1-propynyl)-pseudo-UTP 03601015193 N

Additional non-naturally occurring compounds were designed for structure activity relationship around 1-methylpseudouridine. These compounds include those listed in Table 17.

TABLE 17 Non-naturally occurring nucleotides designed using SAR around 1-methylpseudouridine. Naturally Chemistry Alteration Compound # occuring 1-Hydroxymethylpseudouridine TP 03601015135 N 1-(2-Hydroxyethyl)pseudouridine TP 03601015136 N 1-Methoxymethylpseudouridine TP 03601015137 N 1-(2-Methoxyethyl)pseudouridine TP 03601015138 N 1-(2,2-Diethoxyethyl)pseudouridine TP 03601015139 N (±)1-(2-Hydroxypropyl)pseudouridine TP 03601015140 N (2R)-1-(2-Hydroxypropyl)pseudouridine TP 03601015141 N (2S)-1-(2-Hydroxypropyl)pseudouridine TP 03601015142 N 1-Cyanomethylpseudouridine TP 03601015143 N 1-Morpholinomethylpseudouridine TP 03601015144 N 1-Thiomorpholinomethylpseudouridine TP 03601015145 N 1-Benzyloxymethylpseudouridine TP 03601015146 N 1-(2,2,3,3,3-Pentafluoropropyl)pseudo- 03601015147 N uridine TP 1-Thiomethoxymethylpseudouridine TP 03601015148 N 1-Methanesulfonylmethylpseudouridine TP 03601015149 N 1-Vinylpseudouridine TP 03601015150 N 1-Allylpseudouridine TP 03601015151 N 1-Homoallylpseudouridine TP 03601015152 N 1-Propargylpseudouridine TP 03601015153 N 1-(4-Fluorobenzyl)pseudouridine TP 03601015154 N 1-(4-Chlorobenzyl)pseudouridine TP 03601015155 N 1-(4-Bromobenzyl)pseudouridine TP 03601015156 N 1-(4-Iodobenzyl)pseudouridine TP 03601015157 N 1-(4-Methylbenzyl)pseudouridine TP 03601015158 N 1-(4-Trifluoromethylbenzyl)pseudouridine 03601015159 N TP 1-(4-Methoxybenzyl)pseudouridine TP 03601015160 N 1-(4-Trifluoromethoxybenzyl)pseudouridine 03601015161 N TP 1-(4-Thiomethoxybenzyl)pseudouridine TP 03601015162 N 1-(4-Methanesulfonylbenzyl)pseudouridine 03601015163 N TP Pseudouridine 1-(4-methylbenzoic acid) TP 03601015164 N Pseudouridine 1-(4-methylbenzenesulfonic 03601015165 N acid) TP 1-(2,4,6-Trimethylbenzyl)pseudouridine TP 03601015166 N 1-(4-Nitrobenzyl)pseudouridine TP 03601015167 N 1-(4-Azidobenzyl)pseudouridine TP 03601015168 N 1-(3,4-Dimethoxybenzyl)pseudouridine TP 03601015169 N 1-(3,4-Bis-trifluoromethoxybenzyl)pseudo- 03601015170 N uridine TP 1-Acetylpseudouridine TP 03601015171 N 1-Trifluoroacetylpseudouridine TP 03601015172 N 1-Benzoylpseudouridine TP 03601015173 N 1-Pivaloylpseudouridine TP 03601015174 N 1-(3-Cyclopropyl-prop-2-ynyl)pseudo- 03601015175 N uridine TP Pseudouridine TP 1-methylphosphonic acid 03601015176 N diethyl ester Pseudouridine TP 1-methylphosphonic acid 03601015177 N Pseudouridine TP 1-[3-(2-ethoxy)]propionic 03601015178 N acid Pseudouridine TP 1-[3-{2-(2-ethoxy)- 03601015179 N ethoxy}] propionic acid Pseudouridine TP 1-[3-{2-(2-[2- 03601015180 N ethoxy]-ethoxy)-ethoxy}]propionic acid Pseudouridine TP 1-[3-{2-(2-[2- 03601015181 N (2-ethoxy)-ethoxy]-ethoxy)- ethoxy}]propionic acid Pseudouridine TP 1-[3-{2-(2-[2- 03601015182 N {2(2-ethoxy)-ethoxy}-ethoxy]- ethoxy)-ethoxy}]propionic acid 1-{3-[2-(2-Aminoethoxy)-ethoxy]- 03601015183 N propionyl} pseudouridine TP 1-[3-(2-{2-[2-(2-Aminoethoxy)- 03601015184 N ethoxy]-ethoxy}-ethoxy)- propionyl]pseudouridine TP 1-Biotinylpseudouridine TP 03601015185 N 1-Biotinyl-PEG2-pseudouridine TP 03601015186 N

Example 12. Incorporation of Naturally and Non-Naturally Occurring Nucleosides

Naturally and non-naturally occurring nucleosides are incorporated into mRNA encoding a polypeptide of interest. Examples of these are given in Tables 18, 19, and 20. Certain commercially available nucleoside triphosphates (NTPs) are investigated in the polynucleotides of the invention. A selection of these are given in Table 19. The resultant mRNA are then examined for their ability to produce protein, induce cytokines, and/or produce a therapeutic outcome.

TABLE 18 Naturally and non-naturally occurring nucleosides. Naturally Chemistry Alteration Compound # occuring N4-Methyl-Cytidine TP 00901014004 Y N4,N4-Dimethyl-2′-OMe-Cytidine TP 03601014029 Y 5-Oxyacetic acid-methyl ester-Uridine TP 00901013004 Y 3-Methyl-pseudo-Uridine TP 00901015007 Y 5-Hydroxymethyl-Cytidine TP 00901014005 Y 5-Trifluoromethyl-Cytidine TP 00901014003 N 5-Trifluoromethyl-Uridine TP 00901013002 N 5-Methyl-amino-methyl-Uridine TP 00901013006 Y 5-Carboxy-methyl-amino-methyl-Uridine TP 00901013026 Y 5-Carboxymethylaminomethyl-2′-OMe- 00901023026 Y Uridine TP 5-Carboxymethylaminomethyl-2-thio- 00901013027 Y Uridine TP 5-Methylaminomethyl-2-thio-Uridine TP 00901013028 Y 5-Methoxy-carbonyl-methyl-Uridine TP 00901013005 Y 5-Methoxy-carbonyl-methyl-2′-OMe- 00901023005 Y Uridine TP 5-Oxyacetic acid-Uridine TP 00901013029 Y 3-(3-Amino-3-carboxypropyl)-Uridine TP 00901013030 Y 5-(carboxyhydroxymethyl)uridine methyl 00901013031 Y ester TP 5-(carboxyhydroxymethyl)uridine TP 00901013032 Y

TABLE 19 Non-naturally occurring nucleoside triphosphates. Naturally Chemistry Alteration Compound # occuring 1-Me-GTP 00901012008 N 2′-OMe-2-Amino-ATP 00901071002 N 2′-OMe-pseudo-UTP 00901075001 Y 2′-OMe-6-Me-UTP 03601073033 N 2′-Azido-2′-deoxy-ATP 00901371001 N 2′-Azido-2′-deoxy-GTP 00901372001 N 2′-Azido-2′-deoxy-UTP 00901373001 N 2′-Azido-2′-deoxy-CTP 00901374001 N 2′-Amino-2′-deoxy-ATP 00901381001 N 2′-Amino-2′-deoxy-GTP 00901382001 N 2′-Amino-2′-deoxy-UTP 00901383001 N 2′-Amino-2′-deoxy-CTP 00901384001 N 2-Amino-ATP 00901011002 N 8-Aza-ATP 00901011003 N Xanthosine-5′-TP 00901012003 N 5-Bromo-CTP 03601014008 N 2′-F-5-Methyl-2′-deoxy-UTP 03601023014 N 5-Aminoallyl-CTP 03601014009 N 2-Amino-riboside-TP 03601012004 N

TABLE 20 Combinations of naturally occurring and non-naturally occurring nucleotides in mRNA Uracil Cytosine Adenine Guanine 5-methoxy-UTP CTP ATP GTP 5-Methoxy-UTP N4Ac-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 5-Methoxy-UTP 5-Hydroxymethyl-CTP ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP N4Ac-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 5-Methoxy-UTP 5-Hydroxymethyl-CPT ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP N4—Ac-CTP ATP GTP 5-Methoxy-UTP 5-Iodo-CTP ATP GTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 5-Methyl-CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 5-Methyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP CTP Alpha-thio-ATP GTP 5-Methoxy-UTP 5-Methyl-CTP Alpha-thio-ATP GTP 5-Methoxy-UTP CTP ATP Alpha-thio-GTP 5-Methoxy-UTP 5-Methyl-CTP ATP Alpha-thio-GTP 5-Methoxy-UTP CTP N6—Me-ATP GTP 5-Methoxy-UTP 5-Methyl-CTP N6—Me-ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 5-Methyl-CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 5-Methyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP CTP ATP GTP 5-Methoxy-UTP 5-Ethyl-CTP ATP GTP 5-Methoxy-UTP 5-Methoxy-CTP ATP GTP 5-Methoxy-UTP 5-Ethynyl-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 25% 5-Methyl-CTP ATP GTP 1-Methyl-pseudo-UTP 50% 5-Methoxy-UTP + 50% 5-Methyl-CTP ATP GTP 1-Methyl-pseudo-UTP 25% 5-Methoxy-UTP + 75% 5-Methyl-CTP ATP GTP 1-Methyl-pseudo-UTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% 75% 5-Methyl-CTP + 25% CTP ATP GTP 1-Methyl-pseudo-UTP 75% 5-Methoxy-UTP + 25% 50% 5-Methyl-CTP + 50% CTP ATP GTP 1-Methyl-pseudo-UTP 75% 5-Methoxy-UTP + 25% 25% 5-Methyl-CTP + 75% CTP ATP GTP 1-Methyl-pseudo-UTP 50% 5-Methoxy-UTP + 50% 75% 5-Methyl-CTP + 25% CTP ATP GTP 1-Methyl-pseudo-UTP 50% 5-Methoxy-UTP + 50% 50% 5-Methyl-CTP + 50% CTP ATP GTP 1-Methyl-pseudo-UTP 50% 5-Methoxy-UTP + 50% 25% 5-Methyl-CTP + 75% CTP ATP GTP 1-Methyl-pseudo-UTP 25% 5-Methoxy-UTP + 75% 75% 5-Methyl-CTP + 25% CTP ATP GTP 1-Methyl-pseudo-UTP 25% 5-Methoxy-UTP + 75% 50% 5-Methyl-CTP + 50% CTP ATP GTP 1-Methyl-pseudo-UTP 25% 5-Methoxy-UTP + 75% 25% 5-Methyl-CTP + 75% CTP ATP GTP 1-Methyl-pseudo-UTP 75% 5-Methoxy-UTP + 25% CTP ATP GTP 1-Methyl-pseudo-UTP 50% 5-Methoxy-UTP + 50% CTP ATP GTP 1-Methyl-pseudo-UTP 25% 5-Methoxy-UTP + 75% CTP ATP GTP 1-Methyl-pseudo-UTP 5-methoxy-UTP (In House) CTP ATP GTP 5-methoxy-UTP (Hongene) CTP ATP GTP 5-methoxy-UTP (Hongene) 5-Methyl-CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 5-Methyl-CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 5-Methyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 5-Methoxy-UTP 5-Methyl-CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 5-Methyl-CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 5-Methyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 5-Methyl-CTP ATP GTP 5-Methoxy-UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 5-Methoxy-UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP CTP ATP GTP 50% 5-Methoxy-UTP + 50% UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 50% 5-Methyl-CTP + 50% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Fluoro-CTP ATP GTP 5-Methoxy-UTP 5-Phenyl-CTP ATP GTP 5-Methoxy-UTP N4-Bz-CTP ATP GTP 5-Methoxy-UTP CTP N6-Isopentenyl- GTP ATP 5-Methoxy-UTP N4—Ac-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% N4—Ac-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% N4—Ac-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% N4—Ac-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% N4—Ac-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Hydroxymethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Hydroxymethyl-CTP + ATP GTP 75% CTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Hydroxymethyl-CTP + ATP GTP 25% CTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Hydroxymethyl-CTP + ATP GTP 75% CTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Hydroxymethyl-CTP + ATP GTP 25% CTP 5-Methoxy-UTP N4-Methyl CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% N4-Methyl CTP + 75% ATP GTP CTP 25% 5-Methoxy-UTP + 75% UTP 75% N4-Methyl CTP + 25% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 25% N4-Methyl CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 75% N4-Methyl CTP + 25% ATP GTP CTP 5-Methoxy-UTP 5-Trifluoromethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Trifluoromethyl-CTP + ATP GTP 75% CTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Trifluoromethyl-CTP + ATP GTP 25% CTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Trifluoromethyl-CTP + ATP GTP 75% CTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Trifluoromethyl-CTP + ATP GTP 25% CTP 5-Methoxy-UTP 5-Bromo-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Bromo-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Bromo-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Bromo-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Bromo-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Iodo-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Iodo-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Iodo-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Iodo-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Iodo-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Ethyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Ethyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Ethyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Ethyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Ethyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Methoxy-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Methoxy-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Methoxy-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Methoxy-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Methoxy-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Ethynyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Ethynyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Ethynyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Ethynyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Ethynyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Pseudo-iso-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Pseudo-iso-CTP + 75% ATP GTP CTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Pseudo-iso-CTP + 25% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Pseudo-iso-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Pseudo-iso-CTP + 25% ATP GTP CTP 5-Methoxy-UTP 5-Formyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Formyl-CTP + 75% CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Formyl-CTP + 25% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Formyl-CTP + 75% CTP ATP GTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Formyl-CTP + 25% CTP ATP GTP 5-Methoxy-UTP 5-Aminoallyl-CTP ATP GTP 25% 5-Methoxy-UTP + 75% UTP 25% 5-Aminoallyl-CTP + 75% ATP GTP CTP 25% 5-Methoxy-UTP + 75% UTP 75% 5-Aminoallyl-CTP + 25% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 25% 5-Aminoallyl-CTP + 75% ATP GTP CTP 75% 5-Methoxy-UTP + 25% UTP 75% 5-Aminoallyl-CTP + 25% ATP GTP CTP

Example 13. Incorporation of Alterations to the Nucleobase and Carbohydrate (Sugar)

Naturally and non-naturally occurring nucleosides are incorporated into mRNA encoding a polypeptide of interest. Commercially available nucleosides and NTPs having alterations to both the nucleobase and carbohydrate (sugar) are examined for their ability to be incorporated into mRNA and to produce protein, induce cytokines, and/or produce a therapeutic outcome. Examples of these nucleosides are given in Tables 21 and 22.

TABLE 21 Combination alterations. Chemistry Alteration Compound # 5-iodo-2′-fluoro-deoxyuridine TP 03601023034 5-iodo-cytidine TP 00901014035 2′-bromo-deoxyuridine TP 00901043001 8-bromo-adenosine TP 03601011035 8-bromo-guanosine TP 03601012021 2,2′-anhydro-cytidine TP hydrochloride 00901144001 2,2′-anhydro-uridine TP 00901143001 2′-Azido-deoxyuridine TP 00901373001 2-amino-adenosine TP 03601011002 N4-Benzoyl-cytidine TP 03601014013 N4-Amino-cytidine TP 03601014037 2′-O-Methyl-N4-Acetyl-cytidine TP 00901074007 2′Fluoro-N4-Acetyl-cytidine TP 00901024007 2′Fluor-N4-Bz-cytidine TP 03601024013 2′O-methyl-N4-Bz-cytidine TP 03601074013 2′O-methyl-N6-Bz-deoxyadenosine TP 03601071036 2′Fluoro-N6-Bz-deoxyadenosine TP 03601021036 N2-isobutyl-guanosine TP 03601012022 2′Fluro-N2-isobutyl-guanosine TP 03601022022 2′O-methyl-N2-isobutyl-guanosine TP 03601072022

TABLE 22 Naturally occurring combinations. Naturally Name Compound # occurring 5-Methoxycarbonylmethyl-2-thiouridine TP 00901013035 Y 5-Methylaminomethyl-2-thiouridine TP 00901013028 Y 5-Carbamoylmethyluridine TP 00901013036 Y 5-Carbamoylmethyl-2′-O-methyluridine TP 00901073036 Y 1-Methyl-3-(3-amino-3-carboxypropyl) 00901015036 Y pseudouridine TP 5-Methylaminomethyl-2-selenouridine TP 00901013037 Y 5-Carboxymethyluridine TP 00901013038 Y 5-Methyldihydrouridine TP 03601013039 ( Y Iysidine TP 00901014038 Y 5-Taurinomethyluridine TP 00901013040 Y 5-Taurinomethyl-2-thiouridine TP 00901013041 Y 5-(iso-Pentenylaminomethyl)uridine TP 00901013042 Y 5-(iso-Pentenylaminomethyl)-2-thiouridine 00901013043 Y TP 5-(iso-Pentenylaminomethyl)-2′-O- 00901013044 Y methyluridine TP N4-Acetyl-2′-O-methylcytidine TP 00901074007 Y N4,2′-O-Dimethylcytidine TP 00901074004 Y 5-Formyl-2′-O-methylcytidine TP 03601074036 Y 2′-O-Methylpseudouridine TP 00901073001 Y 2-Thio-2′-O-methyluridine TP 00901073008 Y 3,2′-O-Dimethyluridine TP 00901073045 Y

In the tables “UTP” stands for uridine triphosphate, “GTP” stands for guanosine triphosphate, “ATP” stands for adenosine triphosphate, “CTP” stands for cytosine triphosphate, “TP” stands for triphosphate and “Bz” stands for benzoyl.

The non-naturally occurring nucleobases of the invention, e.g., as indicated in Tables 5-10, can be provided as the 5′-mono-, di-, or triphosphate and/or the 3′-phosphoramidite (e.g., the 2-cyanoethyl-N,N-diisopropylphosphoramidite).

Example 14. Synthesis of Pseudo-U-Alpha-Thio-TP (00902015001)

A solution of pseudouridine 1 (130.0 mg, 0.53 mmol; applied heat to make it soluble) and proton sponge (170.4 mg, 0.8 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Thiophosphoryl chloride (107.5 μL, 1.06 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (514.84 μL, 2.13 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (872.4 mg, 1.59 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 24.5 mL of water and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.75 by adding 4.5 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 16.57-18.15 min). Fractions containing the desired were pooled and lyophilized to yield the Pseudo-U-alpha-thio-TP as a tetrakis(triethylammonium salt) (62.73 mg, 24.5%, based on α₂₅₅=7,546). UV max=265 nm; MS: m/e 498.70 (M−H).

Example 15. Synthesis of 1-methyl-pseudo-U-alpha-thio-TP (00902015002)

A solution of 1-methyl-pseudouridine 5 (130.0 mg, 0.5 mmol; applied heat to make it soluble) and proton sponge (160.7 mg, 0.75 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Thiophosphoryl chloride (101.43 μL, 1.00 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (485.7 μL, 2.00 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (823.0 mg, 1.5 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 24.0 mL of water and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.85 by adding about 3.5 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 17.34-18.72 min). Fractions containing the desired were pooled and lyophilized to yield the 1-Methyl-Pseudo-U-alpha-thio-TP as a tetrakis(triethylammonium salt) (72.37 mg, 28.0%, based on α₂₇₁=8,500). UV max=271 nm; MS: m/e 512.66 (M−H).

Example 16. Synthesis of 1-ethyl-pseudo-UTP (03601015003)

Compound 9: To a solution of pseudouridine (1, 2.4 g, 9.8 mmol) in anhydrous N,N-dimethylformamide (30 mL) at −30° C. was added 4-dimethylaminopyridine (DMAP, 1.1 g, 9.8 mmol), followed by acetic anhydride (10 mL) portion wise over a period of 15 min. The reaction mixture was stirred at −30° C. for 3 h, and then the temperature was raised to room temperature. The reaction mixture was quenched with MeOH (10 mL), and concentrated to dryness under reduced pressure. The residue was dissolved in CH₂Cl₂ (100 mL), and washed with H₂O (50 mL). The organic phase was dried (Na₂SO₄) and concentrated. Then the crude compound 9 was dried overnight in a vacuum oven with P₂O₅ and used without further purification.

Compound 10: To a solution of 2′,3′,5′-tri-O-acetyl-pseudo uridine (9) (0.8 g, 2.2 mmol) in dry CH₃CN (20 mL) was added N,O-bis(trimethylsilyl)acetamide (BSA) (3.0 mL), and the reaction mixture was reflux for 2 h. The reaction mixture was then cooled to room temperature. CH₃CH₂I (0.5 g, 3.3 mmol) was added, and the reaction mixture was stirred at 62° C. overnight. Then CH₃CH₂I (0.5 g, 3.3 mmol) was added, and the reaction mixture was stirred at 62° C. for four days. The reaction mixture was evaporated under reduced pressure. The residue was dissolved in CH₂Cl₂ (100 mL), washed with 1% NaHCO₃ solution (50 mL), dried (Na₂SO₄) and evaporated to dryness. The residual was purified by silica gel column using PE:EA (5:1 to 1:1) as the eluent to give 0.56 g of desired product 10.

1-Ethyl-pseudouridine 11: A solution of compound 10 (0.56 g) in ammonia saturated methanol (50 mL) was stirred at room temperature overnight. The volatiles were removed under reduced pressure. Then the residue was purified by silica gel column chromatography, eluted with 5-10% methanol in dichloromethane to give 230 mg compound 11 as a light yellow solid with 95.95% HPLC purity. ¹H-NMR (DMSO-d6, 300 MHz, ppm) δ 11.32 (br, 1H), 7.81 (s, 1H), 5.01 (d, J=3.00 Hz, 1H), 4.98 (t, J=3.00 Hz, 1H), 4.75 (dd, J=1.5, 2.7 Hz, 1H), 4.46 (d, J=3.00 Hz, 1H), 3.88-3.95 (m, 2H), 3.69-3.70 (m, 4H), 3.45-3.48 (m, 1H), 1.17 (t, J=5.10 Hz, 1H).

1-Ethyl-pseudo-UTP: A solution of 1-ethyl-pseudouridine 11 (124.0 mg, 0.46 mmol; applied heat to make it soluble) and proton sponge (147.87 mg, 0.69 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (85.9 μL, 0.92 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (446.5 μL, 1.8 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (757.2 mg, 1.38 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 25.0 mL of water and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.50 by adding about 3.5 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 1 T87-18.68 min). Fractions containing the desired were pooled and lyophilized to yield the 1-Ethyl-pseudo-UTP as a tetrakis(triethylammonium salt) (47.7 mg, 20.2%, based on α₂₇₁=8,500). UV max=271 nm; MS: m/e 510.70 (M−H).

Example 17. Synthesis of 1-propyl-pseudo-UTP (03601015004)

Compound 15: To a solution of 2′,3′,5′-tri-O-acetyl pseudouridine 9 (1.0 g, 2.7 mmol) in dry pyridine (20 mL) was added DBU (0.6 g, 4.1 mmol), and the reaction mixture was stirred at room temperature for 0.5 h. To this mixture, CH₃CH₂CH₂I (0.69 g, 4.0 mmol) was added and stirred at room temperature for 2-3 h. The reaction mixture was dissolved in CH₂Cl₂ (100 mL), washed with brine (3×50 mL), dried (Na₂SO₄) and evaporated to dryness. The residual was purified with silica gel column using PE:EA-10:1 to 3:1 as the eluent to afford 0.5 g desired compound 15.

1-Propyl-pseudo-U (16): A solution of compound 15 (0.5 g) in ammonia saturated methanol (50 mL) was stirred at room temperature overnight. The volatiles were removed under reduced pressure. The residue was purified by silica gel column chromatography, eluted with 5-10% methanol in dichloromethane to give 260 mg compound 16 as off-white solid with 96.59% HPLC purity. Analytical data for 1-Propyl-pseudo-U (16): ¹H-NMR (DMSO-d6, 300 MHz, ppm) δ 11.29 (br, 1H), 7.79 (s, 1H), 4.96 (d, J=1.80 Hz, 1H), 4.83 (t, J=3.90 Hz, 1H), 4.73 (d, J=3.90 Hz, 1H), 4.44 (d, J=3.00 Hz, 1H), 3.85-3.92 (m, 2H), 3.43-3.69 (m, 5H), 1.56 (q, J=5.40 Hz, 2H), 8.38 (t, J=5.40 Hz, 3H).

1-Propyl-pseudo-UTP: A solution of 1-propyl-pseudouridine 16 (130.0 mg, 0.45 mmol; applied heat to make it soluble) and proton sponge (144.66 mg, 0.67 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (84.04, 0.90 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (436.75 μL, 1.8 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (740.7 mg, 1.35 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 25.0 mL of water and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.50 by adding about 3.5 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 18.66-19.45 min). Fractions containing the desired were pooled and lyophilized to yield the 1-Propyl-pseudo-UTP as a tetrakis(triethylammonium salt) (63.33 mg, 26.66%, based on £₂₇₁=8,500). UV max=271 nm; MS: m/e 524.70 (M−H).

Example 18. Synthesis of 1-(2,2,2-trifluoroethyl)pseudo-UTP (03601015005)

Synthesis of Compound 20: To a solution of 2′,3′,5′-tri-O-acetyl pseudouridine 9 (0.8 g, 2.2 mmol) in dry CH₃CN (20 mL) was added N,O-bis(trimethylsilyl)acetamide (BSA) (3.0 mL), and the reaction mixture was reflux for 2 h. The reaction mixture was then cooled to room temperature. To this mixture, CF₃CH₂OTf (0.75 g, 3.3 mmol) was added, and the reaction mixture was stirred at 60° C. overnight. More CF₃CH₂OTf (0.75 g, 3.3 mmol) was then added, and the reaction mixture was stirred at 60° C. overnight. The reaction mixture was concentrated under reduced pressure. The residue was dissolved in CH₂Cl₂ (100 mL), washed with 1% NaHCO₃ solution (3×50 mL), dried (Na₂SO₄) and evaporated to dryness. The residual was purified by silica gel column using PE:EA (5:1 to 1:1) as the eluent to give 0.7 g (72%) of product 20.

1-(2, 2, 2-Trifluoroethyl)pseudo-U (21): A solution of compound 20 (0.7 g) in ammonia saturated methanol (50 mL) was stirred at room temperature overnight. The volatiles were removed under reduced pressure. The residue was purified by silica gel column chromatography, eluted with 5-10% methanol in dichloromethane to give 260 mg compound 21 as pale yellow foam with 98.66% HPLC purity. ¹H-NMR (DMSO-d6, 300 MHz, ppm) δ 11.62 (br, 1H), 7.79 (s, 1H), 5.01 (d, J=3.60 Hz, 1H), 4.80 (d, J=4.20 Hz, 1H), 4.75 (t, J=3.70 Hz, 1H), 4.61 (q, J=6.60 Hz, 1H), 4.48 (d, J=2.70 Hz, 1H), 3.83-3.93 (m, 2H), 3.71 (d, J=2.40 Hz, 1H), 3.61-3.65 (m, 1H), 3.43-3.49 (m, 1H). The structure was also verified by HMBC NMR.

1-(2,2,2-Trifluoroethyl)pseudo-UTP: A solution of 1-(2,2,2-trifluoroethyl)pseudouridine 21 (135.6 mg, 0.42 mmol; applied heat to make it soluble) and proton sponge (135.01 mg, 0.63 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (78.4.0 μL, 0.84 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (407.63 μL, 1.68 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (691.32 mg, 1.26 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 25.0 mL of water, and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.53 by adding about 3.6 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100 A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 19.33-20.74 min). Fractions containing the desired were pooled and lyophilized to yield the 1-(2,2,2-Trifluoroethyl)pseudo-UTP as a tetrakis(triethylammonium salt) (93.88 mg, 39.52%, based on ε₂₇₁=9,000). UV max=262 nm; MS: m/e 564.65 (M−H).

Example 19. Synthesis of 2-thio-pseudo-UTP (00901015006)

Synthesis of N1,N3-Dimethylpseudouridine (25): A suspension of pseudouridine (1) (1.0 g, 4.1 mmol) in N,N-dimethylformamide dimethyl acetal (10 mL) was refluxed at 110° C. for 1 h until a clear solution was obtained. TLC (DCM-MeOH=9:1) indicated the reaction was almost completed. The solution was concentrated in vacuo to give syrup which was triturated with a small amount of methanol to give 640 mg solid product. The filtrate was concentrated and then further purified by flash chromatography on a silica gel column using DCM-MeOH 30:1 to 10:1 gradient eluent to give additional 200 mg product resulting in the total yield of 75.4%. 2-Thio-pseudo-U (26): A mixture of compound 25 (680 mg, 2.5 mmol) and thiourea (950 mg, 12.5 mmol) in 1 M ethanolic sodium ethoxide (25 mL) was refluxed with stirring for 2 h. TLC (DCM-MeOH=9:1) indicated completion of the reaction. After cooling, 3M hydrochloric acid was added to adjust the pH to neutral, and the mercapto compound smell was noticed. It was then adjusted to week basic with ammonium hydroxide. It was purified by flash chromatography on a silica gel column using DCM-MeOH 20:1 to 10:1 to 5:1 gradient eluent giving 310 mg product in 47.7% yield. This material contained 69% beta-anomer and 28% alpha-anomer. It was then further purified by preparative TLC to give 230 mg pure beta-anomer product 26. The second preparative TLC purification generated 183 mg final product with 94.23% HPLC purity. It was characterized by NMR and MS spectral analysis.

2-Thio-pseudo-UTP: A solution of 2-Thiopseudouridine 26 (100.5 mg, 0.39 mmol; applied heat to make it soluble) and proton sponge (125.37 mg, 0.59 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (72.8 μL, 0.78 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (378.52 μL, 1.56 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (641.94 mg, 1.17 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 25.0 mL of water, and the clear solution was stirred vigorously for about an hour at room temperature. The pH of the solution was adjusted to 6.75 by adding about 3.5 mL of 1.0 M TEAB buffer along with vigorous stirring for about 3.0 hours. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 17.06-18.18 min). Fractions containing the desired were pooled and lyophilized to yield the 2-Thio-pseudo-UTP as a tetrakis(triethylammonium salt) (67.13 mg, 34.36%, based on α₂₆₉=10,000). UV max=269 nm; MS: m/e 498.75 (M−H).

Example 20. Synthesis of 5-trifluoromethyl-UTP (009010130021

5-Trifluoromethyl-UTP: A solution of 5-Trifluoromethyluridine 30 (101 mg, 0.32 mmol; applied heat to make it soluble) and proton sponge (102.86 mg, 0.48 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (59.73 μL, 0.64 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (310.85 μL, 1.56 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (526.72 mg, 0.96 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (13.7 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 26.69-27.87 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Trifluoromethyl-UTP as a tetrakis(triethylammonium salt) (34.11 mg, 19.30%, based on α₂₆₀=10,000). UV max=258 nm; MS: m/e 550.65 (M−H).

Example 21. Synthesis of 5-trifluoromethyl-CTP (00901014003)

5-Trifluoromethyl-CTP: A solution of 5-Trifluoromethylcytidine 34 (109 mg, 0.35 mmol; applied heat to make it soluble) and proton sponge (112.5 mg, 0.52 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (65.34 μL, 0.70 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (340.00 μL, 1.40 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (576.10 mg, 1.05 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (16.5 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 17.77-18.63 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Trifluoromethyl-CTP as a tetrakis(triethylammonium salt) (50.75 mg, 26.28%, based on α₂₆₉=9,000). UV max=269 nm; MS: m/e 549.65 (M−H).

Example 22. Synthesis of 3-methyl-pseudo-UTP (00901015187)

3-Methyl-pseudo-UTP: A solution of 3-Methylpseudouridine 38 (104 mg, 0.4 mmol; applied heat to make it soluble) and proton sponge (128.58 mg, 0.6 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (74.70 μL, 0.80 mmol, 2.0 equiv.) was added dropwise to the solution, and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (388.56 μL, 1.60 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (658.40 mg, 1.05 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 15.61-17.21 min). Fractions containing the desired were pooled and lyophilized to yield the 3-Methyl-pseudo-UTP as a tetrakis-(triethylammonium salt) (52.38 mg, 26.25%, based on α₂₆₄=8,000). UV max=264 nm; MS: m/e 496.75 (M−H).

Example 23. Synthesis of 5-methyl-2-thio-UTP (00901013003)

5-Methyl-2-thio-UTP: A solution of 5-Methyl-2-thiouridine 42 (55 mg, 0.2 mmol; applied heat to make it soluble) and proton sponge (64.30 mg, 0.3 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (37.35 μL, 0.40 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (194.28 μL, 0.8 mmol, 4.0 equiv.), and bis(tributylammonium) pyrophosphate (329.20 mg, 0.6 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (8.5 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 18.21-18.92 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Methyl-2-thio-UTP as a tetrakis(triethylammonium salt) (62.44 mg, 60.00%, based on α₂₇₆=13,120). UV max=276 nm; MS: m/e 512.70 (M−H).

Example 24. Synthesis of N4-methyl-CTP (00901014004)

N4-Methyl-CTP: A solution of N4-Methyl-cytidine 46 (100.7 mg, 0.39 mmol; applied heat to make it soluble) and proton sponge (126.44 mg, 0.59 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (72.8 μL, 0.78 mmol, 2.0 equiv.) was added dropwise to the solution, and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (378.85 μL, 1.56 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (642.0 mg, 1.17 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 17.05-17.80 min). Fractions containing the desired were pooled and lyophilized to yield the N4-Methyl-CTP as a tetrakis(triethylammonium salt) (35.05 mg, 17.94%, based on α₂₇₀=11,000). UV max=270 nm; MS: m/e 495.70 (M−H).

Example 25. Synthesis of 5-hydroxymethyl-CTP (00901014005)

5-Hydroxymethyl-CTP: A solution of 5-OTBS-CH₂-cytidine 50 (126.0 mg, 0.33 mmol; applied heat to make it soluble) and proton sponge (107.2 mg, 0.5 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (61.6 μL, 0.66 mmol, 2.0 equiv.) was added dropwise to the solution, and it was then kept stirring for 2.0 hours under N₂ atmosphere. The TBS group had been removed during POCl₃ reaction and corresponding monophosphate (without TBS) was detected by LCMS. A mixture of tributylamine (320.28 μL, 1.32 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (543.2 mg, 0.99 mmol, 3.0 equiv.) in acetonitrile (2.3 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (13.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of corresponding triphosphate (without TBS). The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 16.48-17.36 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Hydroxymethyl-CTP as a tetrakis(triethylammonium salt) (16.72 mg, 9.75% for two steps, based on α₂₇₆=9,000). UV max=276 nm; MS: m/e 511.70 (M−H).

Example 26. Synthesis of 3-methyl-CTP (00901014006)

3-Methyl-CTP: A solution of 3-Methyl-cytidine 54 (93.0 mg, 0.36 mmol; applied heat to make it soluble) and proton sponge (115.7 mg, 0.54 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (67.2 μL, 0.72 mmol, 2.0 equiv.) was added dropwise to the solution, and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (349.4 μL, 1.44 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (592.6 mg, 1.08 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.0 mL), and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 16.15-16.67 min). Fractions containing the desired were pooled and lyophilized to yield the 3-Methyl-CTP as a tetrakis(triethylammonium salt) (20.4 mg, 11.4%, based on α₂₇₇=9,000). UV max=277 nm; MS: m/e 495.75 (M−H).

Example 27. Synthesis of UTP-Oxyacetic Acid Me Ester (00901013004))

UTP-5-oxyacetic acid Me ester: A solution of Uridine-5-oxyacetic acid Me ester 58 (100.3 mg, 0.3 mmol; applied heat to make it soluble) and proton sponge (96.44 mg, 0.45 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (56.0 μL, 0.6 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (291.2 μL, 1.2 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (493.8 mg, 0.9 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (14.2 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B ACN; flow rate: 20.0 mL/min; retention time: 18.52-19.06 min). Fractions containing the desired were pooled and lyophilized to yield the UTP-5-oxyacetic acid Me ester as a tetrakis(triethylammonium salt) (20.04 mg, 11.67%, based on α₂₇₅=10,000). UV max=275 nm; MS: m/e 570.65 (M−H).

Example 28. Synthesis of 5-methoxycarbonylmethyl-UTP (00901013005)

5-Methoxycarbonylmethyl-UTP: A solution of 5-Methoxycarbonylmethyl-uridine 62 (101.0 mg, 0.32 mmol; applied heat to make it soluble) and proton sponge (102.86 mg, 0.48 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (59.73 μL, 0.64 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (310.58 μL, 1.28 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (526.72 mg, 0.9 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (15.1 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 17.15-18.38 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Methoxycarbonylmethyl-UTP as a tetrakis(triethylammonium salt) (49.88 mg, 28.12%, based on α₂₆₅=11,000). UV max=265 nm; MS: m/e 554.70 (M−H).

Example 29. Synthesis of 5-methylaminomethyl-UTP (00901013006)

5-Methylaminomethyl-UTP: A solution of 5-N-TFA-N-Methylaminomethyl-uridine 66 (110.0 mg, 0.29 mmol; applied heat to make it soluble) and proton sponge (94.30 mg, 0.44 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (54.13 μL, 0.58 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (281.46 μL, 1.16 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (477.34 mg, 0.87 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (13.7 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. To this above crude reaction mixture, about 22.0 mL of concentrated NH₄OH was added and the reaction mixture was stirred at room temperature overnight. It was then lyophilized overnight and the crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 14.89-16.11 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Methylaminomethyl-UTP as a tetrakis(triethylammonium salt) (35.27 mg, 19.31% for two steps, based on α₂₆₆=10,000). UV max=266 nm; MS: m/e 525.70 (M−H).

Example 30. Synthesis of N4,N4,2′-O-trimethyl-CTP (03601074029)

N4, N4, 2′-O-Trimethyl-CTP (74): A solution of N4, N4, 2′-O-trimethyl-cytidine 71 (101.5 mg, 0.36 mmol; applied heat to make it soluble) and proton sponge (115.7 mg, 0.54 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (67.20 μL, 0.72 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (349.40 μL, 1.44 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (592.60 mg, 1.08 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 18.67-19.38 min). Fractions containing the desired were pooled and lyophilized to yield the N4, N4, 2′-O-Trimethyl-CTP (74) as a tetrakis(triethylammonium salt) (30.22 mg, 16.11%, based on α₂₇₈=9,000). UV max=278 nm; MS: m/e 523.75 (M−H).

Example 31. Synthesis of 5-methoxycarbonylmethyl-2′-O-methyl-UTP (00901073005)

5-Methoxycarbonylmethyl-2′-O-methyl-UTP (78): A solution of 5-Methoxycarbonylmethyl-2′-O-methyl-uridine 75 (102.0 mg, 0.31 mmol; applied heat to make it soluble) and proton sponge (100.72 mg, 0.47 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (57.87 μL, 0.62 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (300.87 μL, 1.24 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (510.26 mg, 0.93 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (14.64 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was HPLC purified (Shimadzu, Phenomenex C18 preparative column, 250×30.0 mm, 5.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 20.0 mL/min; retention time: 18.57-19.35 min). Fractions containing the desired were pooled and lyophilized to yield the 5-Methoxycarbonylmethyl-2′-O-methyl-UTP (78) as a tetrakis(triethylammonium salt) (54.60 mg, 30.97%, based on α₂₅₅=11,000). UV max=265 nm; MS: m/e 568.65 (M−H).

Example 32. Synthesis of 5-methoxy Uridine (Compound 15) and 5-methoxy UTP (NTP of Said Compound)

A solution of 5-methoxy uridine (compound 15) (69.0 mg, 0.25 mmol, plus heat to make it soluble) was added to proton sponge (80.36 mg, 0.375 mmol, 1.50 equiv.) in 0.7 mL trimethylphosphate (TMP) and was stirred for 10 minutes at 0° C. Phosphorous oxychloride (POCl₃) (46.7 ul, 0.50 mmol, 2.0 equiv.) was added dropwise to the solution before being kept stirring for 2 hours under N₂ atmosphere. After 2 hours the solution was reacted with a mixture of bistributylammonium pyrophosphate (TBAPP or (n-Bu₃NH)₂H₂P₂O₇) (894.60 mg, 1.63 mmol, 6.50 equiv.) and tributylamine (243.0 ul, 1.00 mmol, 4.0 equiv.) in 2.0 ml of dimethylformamide. After approximately 15 minutes, the reaction was quenched with 17.0 ml of 0.2M triethylammonium bicarbonate (TEAB) and the clear solution was stirred at room temperature for an hour. The reaction mixture was lyophilized overnight and the crude reaction mixture was purified by HPLC (Shimadzu, Kyoto Japan, Phenomenex C18 preparative column, 250×21.20 mm, 10.0 micron; gradient: 100% A for 3.0 min, then 1% B/min, A=100 mM TEAB buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 16.57-17.51 min). Fractions containing the desired compound were pooled and lyophilized to produce the NTP of compound 15. The triphosphorylation reactions were carried out in a two-neck flask flame-dried under N₂ atmosphere. Nucleosides and the protein sponge were dried over P₂O₅ under vacuum overnight prior to use. The formation of monophosphates was monitored by LCMS.

Example 33. Synthesis of 6-Methylpseudouridine (03600015037)

Ethylthiomethanol: To a stirred mixture of ethanethiol (7.4 ml, 6.2 g, 0.1 mol) and paraformaldehyde (3.0 g, 0.1 mol) was added 0.03 mL saturated sodium methoxide solution in methanol as catalyst. It was stirred at 40 C for 30 min, and cooled to give liquid product 9.2 g. It was used for next step without further purification.

(tert-Butyldimethylsilyloxy)methyl ethyl sulfide: To a solution of ethylthiomethanol (4.6 g, 50 mmol) in 50 mL of anhydrous dichloromethane was added tert-butyldimethylsilylchloride (8.31 g, 55 mmol), 4-(N,N-dimethylamino)pyridine (244 mg, 2 mmol) and triethylamine (8.35 ml, 60 mmol). The mixture was stirred at ambient temperature under nitrogen atmosphere for 4 h, and diluted with dichloromethane. The mixture was washed successively with water (×2) and saturated aqueous ammonium chloride (×2), and then dried over anhydrous sodium sulfate. The filtrate solution was concentrated under reduced pressure to give 8.72 g product as pale yellow oil in 84% yield. It was used in next step without further purification.

(tert-Butyldimethylsilyloxy)methyl Chloride: A solution of (tert-butyldimethylsilyloxy)methyl ethyl sulfide (5.1 mg, 25 mmol) in anhydrous dichloromethane was cooled to 0° C. Sulfury chloride (1.6 mL, 10 mmol) in 20 mL of anhydrous methylene chloride was added under stirring over 30 min. The reaction mixture was stirred at room temperature for an additional 10 min, and concentrated under reduced pressure giving 4.2 g product as pale yellow oil, which was used directly for next step without further purification.

Compound 79: A mixture of pseudouridine (1) (3.0 g, 12.3 mmol), imidazole (4.2 g, 61.5 mmol, 5.0 eq), and t-butyldimethylsilyl chloride (7.4 g, 49.2 mmol, 4.0 eq) in anhydrous DMF was stirred at 30° C. overnight. TLC (PE-EA=2:1) indicated completion of the reaction. The reaction mixture was treated with dichloromethane and saturated sodium carbonate solution. The organic phase was separated, and the aqueous phase was extracted with ethyl acetate. The combined organic phase was dried over anhydrous sodium sulfate. The filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using PE-EA (3:1) as eluent giving white foam product 79 which was used for next step without further purification and characterization.

Compound 80: A stirred mixture of trisilylated compound 79 (1.5 g, 2.56 mmol) in 20 mL of anhydrous acetonitrile and 8 mL of BSA was heated to 65° C. under nitrogen atmosphere for 6 h. t-(Butyldimethylsilyloxy)methyl chloride (1.8 g, 10 mmol) was added, and the resulting reaction mixture was stirred at 65° C. overnight. TLC (PE-EA=3:1) indicated completion of the reaction. The reaction mixture was cooled to room temperature and treated with dichloromethane and aqueous saturated sodium carbonate solution. The layers were separated, and the aqueous layer was extracted with dichloromethane (30 mL×3). The combined organic phase was dried over anhydrous sodium sulfate, and filtered. The solvent was evaporated under reduced pressure. The residue was purified by flash chromatography on a silica gel column giving 1.2 g desired product 80 in 64% yield.

Compound 81: N,N-Diisopropylamine (1.4 mL, 10 mmol) was dissolved in 20 mL of anhydrous THF. The solution was cooled to −78° C. under nitrogen atmosphere. n-Butyl lithium (4 mL, 10 mmol; 2.5 M in hexane) was added dropwise under stirring over 1 h. A solution of compound 80 (2.2 g, 3 mmol) in 5 mL of anhydrous THF was added to the LDA solution prepared above. The resulting reaction mixture was stirred at −78° C. for an additional 2 h. During this time, a solution of iodomthane (1.25 mL, 20 mmol) in 10 mL of anhydrous THF was cooled to −78° C. under nitrogen atmosphere. The LDA solution of compound D at low temperature was directly transferred to this cooled iodomethane solution. The resulting reaction mixture was stirred at −78° C. for 30 min. The reaction mixture was treated with aqueous ammonium chloride solution, and it was allowed to warm to room temperature, followed by the treatment with ethyl acetate and aqueous sodium bicarbonate solution. The layers were separated, and the aqueous phase was extracted with ethyl acetate. The combined organic phase was tried over anhydrous sodium sulfate and filtered. The solution was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column providing 1.1 g desired 6-methylated product 82 in 49% yield.

6-Methylpseudouridine (82): Compound 81 (1.1 g, 1.48 mmol) was treated with 0.5 M TBAF solution in THF, and it was stirred at 30° C. overnight. TLC indicated completion of the reaction. The mixture was concentrated and purified by flash chromatography on a silica gel column providing 257 mg desired product in 67% yield with 99.42% HPLC purity. It was characterized by NMR and MS spectral analysis.

Example 34. Synthesis of 6, N¹-dimethylpseudouridine (03600015107)

Compound 83: Compound 79 (5.87 g, 10 mmol) was dissolved in 100 mL of anhydrous dichloromethane, and 20 mL of BSA was added. The mixture was refluxed under nitrogen atmosphere for 4 h. iodomethane (2.56 g, 1.12 mL, 1.8 eq) was added, and the reaction mixture was continued to be heated at reflux temperature for 5 days. TLC (PE-EA=3:1) indicated trace starting material left. The reaction mixture was cooled to room temperature, and treated with dichloromethane and aqueous sodium bicarbonate solution. The layers were separated, and the aqueous phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous sodium sulfate, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column giving 3.9 g compound 83 as white foam in 65% yield. Some starting material was recovered.

Compound 84: N,N-Diisopropylamine (1.4 mL, 10 mmol) was dissolved in 20 mL of anhydrous THF. The solution was cooled to −78° C. under nitrogen atmosphere. n-Butyl lithium (4 mL, 10 mmol; 2.5 M in hexane) was added dropwise under stirring over 1 h. A solution of compound 83 (1.8 g, 3 mmol) in 5 mL of anhydrous THF was added to the LDA solution prepared above. The resulting reaction mixture was stirred at −78° C. for an additional 2 h. During this time, a solution of iodomthane (1.25 mL, 20 mmol) in 10 mL of anhydrous THF was cooled to −78° C. under nitrogen atmosphere. The LDA solution of compound 83 at low temperature was directly transferred to this cooled iodomethane solution. The resulting reaction mixture was stirred at −78° C. for 30 min. The reaction mixture was treated with aqueous ammonium chloride solution, and it was allowed to warm to room temperature, followed by the treatment with ethyl acetate and aqueous sodium bicarbonate solution. The layers were separated, and the aqueous phase was extracted with ethyl acetate. The combined organic phase was tried over anhydrous sodium sulfate and filtered. The solution was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column providing 1.2 g desired product 84 as pale yellow foam in 65% yield.

1,6-Dimethylpseudouridine (85): Compound 84 (1.2 g, 1.95 mmol) was treated with 10 mL of 1 M TBAF solution in THF, and it was stirred at room temperature for 24 h. TLC indicated completion of the reaction. The mixture was concentrated and purified by flash chromatography on a silica gel column using methylene chloride-methanol (20:1) providing 240 mg desired product 85 with 99.61% HPLC purity. It was characterized by NMR and MS spectral analysis (see separate document for spectra).

Example 35. Synthesis of N¹-Allylpseudouridine (03600015151)

Compound 86: A stirred mixture of compound 79 (1.17 g, 2.0 mmol) in 20 mL of anhydrous acetonitrile and 10 mL of BSA was heated to 65° C. under nitrogen atmosphere for 4 h. Allyl bromide (0.5 mL, 0.7 g, 5.8 mmol) was added. The reaction mixture was stirred at 65° C. for an additional 24 h. TLC (PE-EA=3:1) indicated completion of the reaction. The cooled reaction mixture was treated with ethyl acetate and saturated sodium carbonate solution. The layers were separated, and the aqueous layer was extracted with ethyl acetate. The combined organic phase was dried over anhydrous sodium sulfate. The filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using PE-EA as eluent giving 650 mg product 86 in 52% yield (some starting material was recovered).

1-Allyl-pseudouridine (87): Compound C (1.1 g, 1.75 mmol) was dissolved in 10 mL of THF, and 10 mL of 1M TBAF in THF was added. The reaction mixture was stirred at room temperature for 24 h. The solvent was concentrated, and the residue was purified by flash chromatography on a silica gel column giving 284 mg desired product 87 in 57% yield with 95.47% yield. It was characterized by NMR and MS spectral analysis (see different document for spectra).

Example 36. Synthesis of 1-Propargyl-pseudouridine (03600015153)

Synthesis of compound 88: Bis-trimethylsilylacetamide (BSA, 10 ml) was added to a stirred solution of Compound 79 (1.5 g, 2.56 mmol) in DCM (20 mL). After stirring for four hour at 40 degree C., propargyl bromide (0.36 mL) was added to the solution, and the solution was then heated at reflux temperature for 24 h. The reaction mixture was concentrated to dryness under reduced pressure. The residue was purified via silica gel chromatography using petroleum ether (PE): ethyl acetate (EA)=20:1-8:1 to give 1.1 g compound 88 as light yellow foam in 81% yield.

1-Propargyl-pseudouridine (89): To a solution of Compound 88 (2.2 g, 1 eq) in THF was added TBAF in THF (1 M, 2 mL), and the mixture was stirred overnight at 30 degree C. The mixture was concentrated under reduced pressure to dryness. The resulted crude product was purified by silica gel chromatography using MeOH-DCM=1:50-1:25 to give 0.325 g product 89 as light pink solid in 32.7% yield. HPLC purity: 98.2%; ¹H NMR (DMSO-d₆): δ 11.4 (s, 1H), 7.81 (s, 1H), 4.97-4.99 (d, 1H, J=3.9 Hz), 4.77-4.78 (m, 2H), 4.46-4.50 (m, 3H), 3.83-3.93 (m, 2H), 3.59-3.71 (m, 2H), 3.42-3.50 (m, 2H).

Example 37. Synthesis of 1-Cyclopropylmethylpseudouridine (03600015030)

Synthesis of compound 90: Bis-trimethylsilylacetamide (BSA, 5 ml) was added to a stirred solution of Compound 79 (1.5 g, 2.6 mmol) in DCM (15 mL). After stirring for four hour at 40 degree C., cyclopropylmethyl bromide (0.45 mL) was added to the solution, and the solution was then heated at reflux temperature for 5 days. The reaction mixture was concentrated to dryness under reduced pressure. The residue was purified via silica gel chromatography using PE:EA=20:1-8:1 to give 1.1 g product 90 as light yellow foam in 67% yield.

1-Cyclopropylmethylpseudouridine (91): To a solution of Compound 90 (1.2 g, 1 eq) in THF was added TBAF in THF (1 M, 2 mL), and the mixture was stirred overnight. The mixture was concentrated to dryness under reduced pressure. The resulting crude product was purified by silica gel chromatography using MeOH:DCM=1:50-1:25 to give 0.26 g product 91 as white solid in 46.6% yield. HPLC purity: 97.6%; ¹H NMR (DMSO-d₆): δ 11.28 (s, 1H), 7.84 (s, 1H), 4.97-4.99 (d, 1H, J=3.6 Hz), 4.82-4.85 (t, 1H, J=4.5 Hz), 4.75-4.76 (d, 1H, J=4.5 Hz), 4.46-4.47 (d, 1H, J=3 Hz), 3.88-3.95 (m, 2H), 3.58-3.71 (m, 3H), 3.34-3.45 (m, 2H), 1.11 (1H), 0.45-0.48 (m, 2H), 0.32-0.35 (m, 2H).

Example 38. Synthesis of 6-Chloro-1-methylpseudouridine (03600015117)

Compound 92: N,N-Diisopropylamine (1.4 mL, 10 mmol) was dissolved in 20 mL of anhydrous THF. The solution was cooled to −78° C. under nitrogen atmosphere. n-Butyl lithium (4 mL, 10 mmol; 2.5 M in hexane) was added dropwise under stirring over 1 h. A solution of compound 83 (2.2 g, 3 mmol) in 5 mL of anhydrous THF was added to the LDA solution prepared above. The resulting reaction mixture was stirred at −78° C. for an additional 2 h. Bromine (5 mL) was dissolved in 10 mL of anhydrous carbon tetrachloride, and dried with molecular sieves. This bromine solution was added to the LDA solution of compound 83 under stirring at −78° C. until pale yellow color became orange. The reaction mixture was stirred at −78° C. for 30 min. TLC (PE-EA=3:1) indicated trace amount of starting material left. While still cold, the reaction mixture was poured into the mixture of sodium thiosulfate and sodium bicarbonate aqueous solution. It was extracted with ethyl acetate, and the organic phase was dried over anhydrous sodium sulfate and filtered. The solution was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column to give 1.6 g of 92.

6-Chloro-1-methylpseudouridine (93): 1.6 g of 92 obtained above was treated with 10 mL of 0.5 M TBAF solution in THF, and it was stirred at room temperature for 24 h and concentrated. The residue was purified by flash chromatography on a silica gel column using methylene chloride-methanol providing 120 mg product with 96.3% HPLC purity. It was characterized by NMR and MS spectral analysis to be the N1-methyl-6-chloro pseudouridine 93.

Example 39. Synthesis of 1-Benzyl-pseudouridine (03600015032)

Compound 94: Bis-trimethylsilylacetamide (BSA, 10 mL) was added to a stirred solution of compound 79 (2.0 g, 3.4 mmol) in 20 mL of dichloromethane. After stirring for four hour at 40° C., benzyl bromide (0.5 mL) was added to the solution, and the solution was then heated at reflux temperature for 5 days. The reaction mixture was concentrated to dryness under reduced pressure. The residue was purified via silica gel chromatography using gradient eluent PE:EA=20:1-8:1 to give 1.4 g product 94 as a light yellow foam in 60.8% yield.

1-Benzyl-pseudouridine (95): To a solution of compound 94 (1.4 g, 1 eq) in THF was added TBAF in THF (1 M, 10 mL), and the mixture was stirred at room temperature overnight. The mixture was concentrated under reduced pressure to dryness. The crude product was purified by silica gel chromatography using MeOH:DCM=1:50-1:25 giving 0.309 g desired product 95 as a white solid in 51.0% yield. Purity: 97.9% (HPLC); ¹H NMR (DMSO-d₆) δ 11.41 (s, 1H), 7.91 (s, 1H), 7.27-7.36 (m, 5H), 4.94-4.95 (d, 1H, J=3.6 Hz), 4.86 (s, 2H), 4.77-4.80 (t, 1H, J=4.2 Hz), 4.71-4.72 (d, 1H, J=4.2 Hz), 4.46-4.47 (d, 1H, J=3.3 Hz), 3.93-3.96 (m, 1H), 3.83-3.87 (m, 1H), 3.68-3.70 (m, 1H), 3.59-3.63 (m, 1H), 3.42-3.47 (m, 1H); Mass Spectrum: 335.1 (M+H)⁻, 358.1 (M+Na)⁻.

Example 40. Synthesis of 1-Methyl-3-(2-N-t-Boc-amino-3-t-butyloxycarbonyl) propyl Psudouridine (03600015036-Boc)

Synthesis compound 97: A solution of Boc-Asp(OtBu)-OH (96) (5.0 g, 17.3 mmol) in 50 ml dry THF was cooled to −10 degree C. N-Methylmorpholine (1.75 g, 17.3 mmol) was added. After 1 min, ClCO₂Et (1.65 ml, 17.3 mmol) was added dropwise. The reaction mixture was stirred for an additional 15 min at −5 degree C. The precipitated N-methylmorpholie hydrochloride was filtered off, and the filtrate was added to a solution of NaBH₄ (1.47 g, 38.9 mmol) in 20 mL of water at 5-10 degree C. within 10 min. The reaction mixture was stirred at room temperature for 3.5 h and then cooled to 5 degree C. 3M hydrochloric acid was added to give a pH of 2, and the mixture was extracted twice with ethyl acetate. The combined organic phase was washed twice with water and then dried with anhydrous Nα₂SO₄. The product is dried in vaccuo and purified via silica gel chromatography using EA: PE (1:2) as eluent to give 4.0 g product 97 as colorless oil in 85% yield.

Compound 98: Diisopropyl azodicarboxylate (1.6 g, 3 eq) was added to a stirred solution of compound 83 (1.60 g, 1.0 eq), compound 97 (0.83 g, 1.5 eq) and triphenylphosphine (2.1 g, 3 eq) in anhydrous THF (16 mL) at room temperature under N₂. The reaction mixture was stirred for 1 h, and the solvent was removed under reduced pressure. The residue was purified by silica gel chromatography using PE:EA (10:1-8:1) providing 1.6 g desired product 98 as pale yellow oil in 56.8% yield. 1-Methyl-3-(2-N-t-Boc-amino 3 t butyloxycarbonyl) propyl psudouridine (99): To a solution of compound 98 (1.3 g, 1 eq) in THF was added TBAF in THF (1 M, 2 mL), and the mixture was stirred at room temperature for 2 h. The mixture was concentrated to dryness under reduced pressure. The crude product was purified by silica gel chromatography using MeOH:DCM=1:20-1:5 to give 0.46 g product 99 as white foam in 57.6% yield, with HPLC purity of 98%. ¹H NMR (DMSO-d₆, 300 MHz): δ 7.77 (s, 1H), 6.25-6.64 (d, 1H, J=6.9 Hz), 4.93-4.95 (1H), 4.78-4.81 (m, 2H), 4.73-4.75 (d, 1H, J=4.8 Hz), 4.51-4.52 (d, 1H, J=2.4 Hz), 3.86-3.90 (m, 1H), 3.68-3.70 (m, 3H), 3.48-3.50 (m, 3H), 3.34 (s, 3H), 2.33-2.37 (m, 2H), 1.26-1.37 (18H); ES MS, m/z 537.7 (M+Na)⁺.

Example 41. Synthesis of Compound Pseudouridine 1-(2-ethanoic acid-Fm) (03600015034-Fm)

Synthesis of Bromoacetic Acid Fm Ester (102): 9-Fluorenyl methanol (10 g, 1 eq) was dissolved in 100 mL of dichlormethane, and triethylamine (6.14 g, 1.19 eq) was added. The reaction mixture was cooled in ice bath, and a solution of bromoacetyl bromide (10.3 g, 1 eq) in 10 mL methylene chloride was added under stirring over 1 h. The cloudy mixture was warmed to room temperature, and stirred overnight. The mixture was washed with water (100 mL×3) and brine. The combined organic phase was dried and concentrated under reduced pressure. The crude product thus obtained was purified via silica gel chromatography (PE:EA=300:1-50:1) giving 6.4 g product 102 as a light yellow solid in 39.8% yield.

Compound 100: Bis-trimethylsilylacetamide (BSA, 20 mL) was added to a stirred solution of compound 79 (2.5 g, 3.4 mmol) in dichloromethane (25 mL). After stirring for four hours at 40° C., the bromo-compound 102 (2.43 g, 1.8 eq) in dichloromethane (2 mL) was added, and the solution was then heated at reflux temperature for 5 days. The reaction mixture was concentrated under reduced pressure to dryness. The residue was purified via silica gel chromatography using PE:EA=10:1-5:1 giving 0.8 g desired compound 100 as white foam. (1.7 g of compound 79 was recovered).

Pseudouridine 1-(2-ethanoic acid-Fm) (101): To a solution of compound 100 (0.8 g, 1 eq) in THF (20 mL) was added 1M HCl (1 mL), and the mixture was stirred at room temperature overnight. The mixture was concentrated under reduced pressure to dryness. The residue was purified by silica gel chromatography using MeOH:DCM=1:30-1:20 giving 0.30 g final product 101 as white solid in 64.2% yield.

Example 42. Synthesis of 5-Ethyl-cytidine (03600014039)

Compound 105: To a solution of compound 104 (2.8 g, 20 mmol) in dry acetonitrile (30 mL) was added BSA (21 g, 100 mmol, 5 eq). The reaction mixture was stirred at 60° C. for 4 h and cooled to room temperature. To this reaction mixture were added compound 103 (10.1 g, 20 mmol), TMSOTf (10.8 mL, 60 mmol, 3 eq), and the resulted reaction mixture was stirred at 60° C. for 4 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with methylene chloride and saturated sodium bicarbonate. The organic phase was separated, and the aqueous phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous Nα₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column giving 11 g desired compound 105 in 95% yield.

Compound 106: To a solution of 1,2,4-1H-triazole (19.36 g, 285 mmol), phosphorus oxychloride (5.8 mL 63 mmol) in dry methylene chloride (300 mL) was added slowly triethylamine (37.5 mL, 270 mmol) at 0° C. After the reaction mixture was warmed to room temperature, compound 105 (16.7 g, 30 mmol) was added. The reaction mixture was added and stirred at temperature for 2 h.

Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with methylene chloride and saturated sodium bicarbonate. The organic phase was separated, and the aqueous phase was extracted with methylene chloride. The combined organic phase was dried over anhydrous Nα₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure giving crude product compound 106 which was carried to the next step without further purification.

Compound 107: To a stirred solution of compound 106 (crude obtained above) in dioxane (135 mL) was added concentrated ammonia solution (19.4 mL). The reaction mixture was stirred at room temperature for 5 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to give crude compound 107 which was carried to the next step without further purification.

5-Ethyl-cytidine (108): A solution of compound 107 (crude obtained above) in saturated ammonia methanol solution (100 mL) was stirred at room temperature in s sealed container for 24 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column resulting in the desired final product 108 which was was characterized by NMR, MS and UV spectral analyses. ¹H NMR (DMSO-d₆) δ 7.8 (s, 1H), 7.3 (brs, 2H), 5.75 (s, 1H), 5.31 (s, 1H), 5.16 (s, 1H), 5.01 (s, 1H), 3.97 (s, 2H), 3.83 (s, 1H), 3.68 (d, 2H, J=12.0 Hz), 3.55 (d, 2H, J=12.4 Hz), 2.25 (q, 2H, J=7.2 Hz), 1.05 (t, 3H, J=7.2 Hz). Mass Spectrum: m/z 272.0 (M+H)⁺.

Example 43. Synthesis of 5-Methoxy-cytidine (03600014030)

Compound 110: To a solution of compound 109 (1.42 g, 10 mmol) in dry acetonitrile (30 mL) was added BSA (10.5 g, 50 mmol). The reaction mixture was stirred at 60° C. for 4 h and cooled to room temperature. To the reaction mixture were added compound 103 (5.04 g, 10 mmol) and TMSOTf (2.7 mL, 15 mmol). The resulted reaction mixture was stirred at 60° C. for 4 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with methylene chloride and saturated sodium bicarbonate. The organic phase was separated, and the aqueous phase was extracted with methylene chloride. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column giving 3.8 g desired compound 110 in 65% yield.

Compound 111: To a solution of 1,2,4-1H-triazole (8.73 g, 126 mmol) and phosphorus oxychloride (2.6 mL 27.9 mmol) in dry methylene chloride (300 mL) was added slowly triethylamine (16.6 mL, 119.8 mmol) at 0° C. After the reaction mixture was warmed to room temperature, compound 110 (7.8 g, 13.3 mmol) was added. The reaction mixture was stirred at temperature for 2 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with methylene chloride and saturated sodium bicarbonate. The organic phase was separated, and the aqueous phase was extracted with methylene chloride. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure giving crude product compound 111 which was carried to the next step without further purification.

Compound 112: To a stirred solution of compound 111 (crude obtained above) in dioxane (60 mL) was added concentrated ammonia solution (8.6 mL). The reaction mixture was stirred at room temperature for 5 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure giving crude compound 112 which was carried to the next step without further purification.

5-Methoxy-cytidine (113): A solution of compound 112 (crude obtained above) in saturated ammonia methanol solution (80 mL) was stirred at room temperature in a sealed container for 24 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column resulting in the desired final product 113 which was characterized by LC-MS, UV and HNMR. ¹H NMR (DMSO-d₆) δ 7.73 (s, 1H), 7.50 (s, 1H), 7.03 (s, 1H), 5.76 (d, 1H, J=3.6 Hz), 5.31 (s, 1H), 5.26 (d, 1H, J=4.0 Hz), 4.96 (d, 1H, J=4.8 Hz), 4.01 (d, 1H, J=4.4 Hz), 3.95 (s, 1H), 3.83 (d, 1H, J=2.8 Hz), 3.78 (d, 1H, J=12.0 Hz), 3.62 (s, 3H), 3.58 (d, 1H, J=12.4 Hz); Mass Spectrum: m/z 274.0 (M+H)⁺.

Example 44. Synthesis of 2-Thio-5-amino(TFA)-methyl-Uridine (00900013015-TFA)

Compound 116: A mixture of 2-thiouracil 114 (6.0 g, 46.8 mmol), trimethyl chlorosilane (5.4 mL), hexamethyldisilazane (240 mL) and catalytic amount of ammonium sulfate were refluxed for 18 h. Upon the reaction mixture became clear, it was concentrated under reduced pressure to dryness at the temperature not greater than 45° C. To the resulted silylated thiouracil was dissolved in 1,2-dichloroethane (60 mL), and 1,2,3,5-tetra-O-acetyl-D-ribofuranose (16.5 g, 51.9 mmol) was added. It was stirred until homogeneous, stannic chloride (7.2 mL, 62.4 mmol) was added and stirred or 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was poured into 150 mL of saturated sodium bicarbonate and stirred for 1 h. The mixture was filtered through a pad of Celite, and washed with methylene chloride. The organic phase was separated, and the aqueous was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:2 to 1:1) resulting in compound 116 (15.0 g, 38.8 mmol) in 82.9% yield.

Compound 117: To a stirred solution of compound 116 (15.0 g, 38.8 mmol) in absolute methanol (150 mL) was added lithium hydroxide (3.7 g, 155.2 mmol, 4 eq), and the reaction mixture was stirred at room temperature for 30 min. Upon completion of the reaction as monitored by TLC, hydrochloric acid (3 N) was added to adjust to neutral. The mixture was concentrated under reduced pressure resulting in the white precipitate which was filtered giving 5 g of desired product. The filtrate was concentrated under reduced pressure to give crude product. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (10:1 to 5:1) resulted compound 117 (1.2 g). 6.2 g (23.8 mmol) in 61.3% yield.

Compound 118: To a stirred solution of compound 117 (6.0 g, 23.1 mmol) in acetone (60 mL) was added p-toluenesulfonic acid (0.8 g, 4.7 mmol) and 2,2-Dimethyoxypropane (5.0 g 48.1 mmol). The resulted reaction mixture was stirred at room temperature for 2 h, and solid material disappeared. Upon completion of the reaction as monitored by TLC, sodium bicarbonate (1.5 g) was added, and it was stirred for 1 h. The solid was filtered off and washed with dichloromethane. The filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (20:1 to 10:1) as eluent resulting in (6.4 g, 21.3 mmol) compound 118 in 92.2% yield.

Compound 119: To a stirred solution of compound 118 (6.0 g, 20 mmol) in aqueous potassium hydroxide (0.5 M, 100 mL) was added paraformaldehyde (3.0 g, 100 mmol). The resulted reaction mixture was stirred at 50° C. overnight. Upon completion of the reaction as monitored by TLC, hydrochloric acid (3 M) was added to adjust to neutral. The mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (20:1 to 10:1) resulting in (4.2 g, 12.7 mmol) compound 119 in 63.6% yield.

Compound 120: To a stirred solution of compound 119 (7.5 g, 22.7 mmol) in dioxane (50 mL) was added TMSCI (14.5 mL, 113 mmol, 5 eq). The reaction mixture was stirred at 50° C. under N₂ atmosphere overnight. Upon almost completion of the reaction as monitored by TLC, the reaction mixture was concentrated at the temperature not over 30° C. under reduced pressure. The crude product was dissolved in anhydrous acetone, and concentrated under reduced pressure to dryness. Thus resulted crude product compound 120 was used in next step without further purification.

Compound 121: To a stirred solution of compound 120 (crude obtained above) in dioxane (50 mL) was added ammonium hydroxide. The reaction mixture was stirred at room temperature overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate—petroleum ether (1:3 to 1:1) as eluent resulting in compound 121 (3.1 g) which was used in next step directly.

Compound 122: A solution of compound 121 (3.1 g, 7 mmol) in dry pyridine (50 mL) was cooled to 0° C., and trifluoroacetic anhydride (18 g, 8 mmol) was added under N₂ atmosphere. The reaction mixture was stirred at room temperature for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was diluted with methylene chloride (100 mL) and aqueous sodium bicarbonate (100 mL, 5%). The organic phase was separated, and the aqueous phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate—petroleum ether (1:5 to 1:3) as eluent resulting in compound 122 which was used directly in next step.

2-Thio-5-amino(TFA)-methyl-Uridine (123): 10 mL of hydrochloric acid (1 M) was added to a flask containing compound 122 (1.0 g). The mixture was stirred at room temperature for 30 min. The reaction mixture was neutralized with Na₂CO₃. The solid was filtered off, and the filtrate was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column giving 290 mg desired final compound 123. Compound 123 was characterized by NMR, MS and UV with 99.0% HPLC purity: ¹H NMR (DMSO-d₆) δ 12.73 (s, 1H), 9.56 (s, 1H), 8.17 (s, 1H), 6.57 (s, 1H), 5.42 (d, 1H, J=4.8 Hz), 5.17 (s, 1H), 5.12 (d, 1H, J=4.4 Hz), 4.02-3.97 (m, 4H), 3.92 (s, 1H), 3.71 (d, 1H, J=12.0 Hz), 3.60 (d, 1H, J=6.6 Hz); Mass Spectrum: m/z 385.7 (M+H)⁺; 407.7 (M+Na)⁺.

Example 45. Synthesis of 5-Formyl-2′-O-methylcytidine (03600074036)

Compound 125: To a solution of compound 124 in dry N,N-dimethylformamide were added tert-Butyldimethylsilyl chloride (3 eq) and imidazole (4 eq). The reaction mixture was stirred at room temperature overnight and then quenched with water. The mixture was extracted with ethyl acetate, and the combined organic phase was washed with brine, and dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column giving compound 125.

Compound 126: To a solution of 1,2,4-1H-triazole (4.58 g, 66.3 mmol) in dry methylene chloride (500 mL) was added slowly phosphorus oxychloride (1.34 mL, 14.4 mmol) at room temperature. The mixture was cooled to 0° C., and triethylamine (8.7 mL) was added followed by the addition of compound 125 (3.5 g, 7 mmol) in dichloromethane. The reaction mixture was allowed to warm to room temperature, and stirred for 30 min. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with a mixture of triethylamine and water, followed by addition of saturated sodium bicarbonate. The organic phase was separated, and dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure giving crude product compound 126 which was carried to the next step without further purification.

Compound 127: To a stirred solution of compound 126 (crude obtained above) in dioxane (25 mL) was added concentrated ammonium solution (4 mL). The reaction mixture was stirred at room temperature for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure giving crude compound 127. The crude product was purified by flash chromatography on a silica gel column using methanol-dichloromethane (1:10) as eluent providing desired product 127.

Compound 128: To a stirred solution of compound 127 (5 g) in acetonitrile (70 mL) were added 2,6-lutidine (3.7 g), and an aqueous solution of sodium persulfate (4.76 g, 20 mL) and copper sulfate (0.638 g, aq. solution). The reaction mixture was stirred at 60° C. for 2 h. The mixture was extracted with dichloromethane. The organic phase was washed with brine and dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column giving desired compound 128.

5-Formyl-2′-O-methylcytidine (129): To a stirred solution of compound 128 (1 g, 2 mmol) in dry tetrahydrofuran (15 mL) were added a solution of tetrabutylammonium fluoride in tetrahydrofuran (1 M), followed by the addition of acetic acid (0.3 eq). The reaction mixture was stirred at room temperature. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column giving desired compound 129 with 99% HPLC purity. Compound 129 was characterized by NMR, MS and UV. ¹H NMR (DMSO-d₆) δ 9.39 (s, 1H), 9.04 (s, 1H), 8.16 (s, 1H), 7.84 (s, 1H), 5.83 (s, 1H), 5.32 (s, 1H), 5.08 (d, 1H, J=6.4 Hz), 4.10 (d, 1H, J=4.8 Hz), 3.89 (d, 1H, J=6.8 Hz), 3.81 (s, 1H), 3.74 (s, 1H), 3.64 (d, 1H, J=5.0 Hz), 3.32 (s, 3H); Mass Spectrum: m/z 286 (M+H)⁺; 571 (2M+H)⁺.

Example 46. Synthesis of 2′-O-Methyl-2-thiouridine (00900073008)

Compound 131: A solution of compound 130 (5.16 g, 20 mmol) in dry pyridine (100 mL) was cooled to −78° C., and MsCl (1.86 mL, 2.76 g, 24 mmol, 1.2 eq) was added dropwise. The reaction mixture was allowed to warm to room temperature, and continued to stir for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was quenched with methanol (1 mL), and concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using dichloromethane—methanol (50:1 to 20:1) resulting in compound 131 (3.4 g, 10 mmol) in 50% yield.

Compound 133: A mixture of compound 131 (3.36 g, 10 mmol) and sodium bicarbonate (2.1 g, 25 mmol) in ethanol (250 mL) was refluxed under N₂ atmosphere for 36 h. The reaction mixture was cooled to room temperature, and solid sodium bicarbonate was filtered off. The filtrate was concentrated under reduced pressure, and the crude product was purified by flash chromatography on a silica gel column using dichloromethane-methanol (50:1 to 20:1) resulting in 1.7 g of compound 133 in 59% yield. Some starting material was recovered. This product was verified by MS spectrum with good HPLC purity.

2′-O-Methyl-2-thiouridine (134): A solution of compound 133 (1.7 g, 5.94 mmol) in 500 mL of anhydrous pyridine in a high-pressure bump vessel was cooled to −50° C. The in house prepared and dried hydrogen sulfide gas was bubbled in the solution to make it saturated at low temperature. The high-pressure bump was sealed, and heated in an oil bath to 50° C. for 4 h, and then increased to 70° C. for 24 h. The reaction vessel was cooled to room temperature, and allowed to open to the air slowly. The reaction mixture was concentrated under reduced pressure, and the residue was purified by flash chromatography on a silica gel column providing desired final product 134 with 98.79% HPLC purity (some starting material was recovered). It was characterized by NMR, MS and UV. ¹H NMR (DMSO-d₆) δ 12.66 (s, 1H), 8.20 (d, 1H, J=8.0 Hz), 6.60 (d, 1H, J=0.3.2 Hz), 6.00 (d, 1H, J=8.4 Hz), 5.28 (d, 1H, J=4.8 Hz), 5.17 (d, 1H, J=6.0 Hz), 4.10 (t, 1H, J=5.2 Hz), 3.90 (d, 1H, J=3.2 Hz), 3.80 (d, 1H, J=4.4 Hz), 3.75 (d, 1H, J=4.0 Hz), 3.62 (d, 1H, J=4.0 Hz), 3.45 (s, 3H); Mass Spectrum: m/z 275 (M+H)⁺; 297 (M+Na)⁺.

Example 47. Synthesis of 2-Selenouridine (03600013046)

Compound 135: A solution of compound 117 (12 g, 46.1 mmol), t-butyldimethylsilyl chloride (70 g, 461.0 mmol, 10 eq), and imidazole (36.55 g, 553.2 mmol, 12 eq) in 150 mL of anhydrous DMF was stirred at 60° C. for 12 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was quenched with water and extracted with dichloromethane. The organic phase was dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column providing 20 g compound 135 in 72% yield.

Compound 136: To a solution of compound 135 (5 g, 8.3 mmol) in 50 mL of anhydrous DMF was added iodomethane (11.8 g, 83 mmol, 10 eq), followed by addition of DBU (1.9 g, 12.45 mmol, 1.5 eq). The reaction mixture was stirred at room temperature for 12 h, and quenched with water. The mixture was extracted with dichloromethane. The organic phase was dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column providing 2.0 g compound 136 in 39% yield.

Compound 137: A suspension of selenium (1.28 g, 16.2 mmol, 5 eq) and sodium borohydride (0.74 g, 19.44 mmol, 6 eq) in anhydrous ethanol was stirred at 0° C. under nitrogen flow for 30 minutes till clear colorless solution. A solution of compound 136 (2.0 g, 3.24 mmol) in 10 mL of ethanol was added to the selenium hydride system with syringe. The reaction mixture was stirred at room temperature for 3 days and monitored by TLC. It was quenched with water and extracted with methylene chloride. The organic phase was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column providing 1.8 g product 137 in 85% yield.

2-Selenouridine (138): To a solution of compound 137 (1.8 g, 2.7 mmol) in 10 mL of THF was added 17 mL of TBAF solution in THF (1 mol/L). It was stirred at room temperature for 2 hours. The reaction mixture was quenched with water and concentrated under reduced pressure to dryness. The residue was purified several times by flash chromatography on silica gel columns providing 260 mg of compound 138 with 96% HPLC purity. It was characterized by NMR, MS and UV spectral analyses. ¹H NMR (DMSO) δ 13.9 (s, 1H), 8.21 (d, J=8.0 Hz, 1H), 6.70 (d, J=4.0 Hz, 1H), 6.13 (d, J=8A Hz, 1H), 5.42 (d, J=5.2 Hz, 1H), 5.26 (t, J=4.4 Hz, 1H), 5.11 (d, J=5.6 Hz, 1H), 4.11-4.06 (m, 1H), 4.01-3.95 (m, 1H), 3.94-3.90 (m, 1H), 3.75-3.67 (m, 1H), 3.64-3.56 (m, 1H). Mass Spectrum: m/z 308.8 (M+H)⁺. 330.7 (M+Na)⁺.

Example 48. Synthesis of 5-N-methyl-N-TFA-aminomethyl-2-thiouridine (00900013015-N-Me,N-TFA)

Synthesis of Compound 139. To a solution of compound 114 (24.0 g, 187.2 mmol) in hexamethyldisilazane (960 mL) were added trimethyl chlorosilane (21.60 mL, 169.70 mmol) and the catalytic amount of ammonium sulfate (1.0 g, 75 mmol). The clear reaction mixture was stirred at 126° C. for 18 h. The reaction mixture became clear, and concentrated under reduced pressure to dryness at not more than 45° C. A solution of 1,2,3,5-tetra-O-acetyl-D-robofuranose (66 g, 207.60 mmol) in dry 1,2-dichloroethane (240 mL) was added to the reaction mixture, followed by addition of tin tetrachloride (28.80 mL, 249.6 mmol). The reaction mixture was stirred at room temperature for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was poured into saturated sodium bicarbonate (1000 mL) and stirred for 1 h. The solid was filtered off through a pad of Celite, and washed with methylene chloride. The organic phase separated, and the aqueous phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:2 to 1:1) resulting in compound 139 (65.0 g, 168.2 mmol) in 89% yield.

Synthesis of Compound 117. To a stirred solution of compound 139 (70 g, 181.17 mmol) in methanol (700 mL) was added lithium hydroxide (15 g, 625 mmol). It was stirred at room temperature for 1 min. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with hydrochloric acid (3 N) to adjust to neutral. The reaction mixture was concentrated under reduced pressure resulting in white solid precipitation. The precipitate was filtered giving 31.2 g compound 117 as white solid in 66.2% yield.

Synthesis of Compound 140. To a stirred solution of compound 117 (31.20 g, 119.88 mmol) in dry acetone (1000 mL) were added p-toluenesulfonic acid (3.06 g, 17.79 mmol) and 2,2-dimethoxypropane. The resulted reaction mixture was stirred at room temperature for 2 h till solid completely disappeared. Upon completion of the reaction as monitored by TLC, the reaction mixture was adjusted to neutral with by addition of saturated sodium bicarbonate (150 mL). The solid was filtered off, and washed with dichloromethane. The filtrate was concentrated under reduced pressure, and the crude product was purified by flash chromatography on a silica gel column using dichloromethane-methanol (20:1 to 10:1) to give final product compound 140 (33.97 g, 113.10 mmol) in 94.36% yield.

Synthesis of Compound 141. To a stirred mixture of compound 140 (26.0 g, 86.57 mmol) and aqueous potassium hydroxide (0.5 N, 200 mL) was added paraformaldehyde (20.0 g, 666.66 mmol). The reaction mixture was stirred at 50° C. overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was adjusted to neutral with hydrochloric acid (3 N). The reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (20:1 to 10:1) resulting in compound 141 (25 g, 75.76 mmol) in 87.51% yield.

Synthesis of Compound 142. Compound 141 (16 g, 48A3 mmol) was dissolved in anhydrous dioxane (500 mL), and chlorotrimethylsilane (65 mL, 507 mmol) was added to the stirred solution. The reaction mixture was stirred overnight at 50° C. under N₂ atmosphere. The reaction mixture was concentrated under reduced pressure at not less than 30° C. giving crude product compound 142 which was carried to the next step without further purification.

Synthesis of Compound 143. To a stirred solution of compound 142 (crude obtained above) in dioxane (200 mL) was added methylamine MeNH₂ (200 mL, 40% aq. Solution, 2.32 mol, 48 eq). The reaction mixture was stirred at room temperature for 10 min. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (30:1 to 20:1) resulting in compound 143 (6.7 g 19.51 mmol) in 40.28% yield.

Synthesis of Compound 144. To a stirred solution of compound 143 (6.45 g, 18.78 mmol) in dry pyridine (100 mL) was added trifluoroacetic anhydride (7.94 mL, 56.32 mmol, 3 eq). The reaction mixture was stirred at room temperature for 10 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:5 to 1:2) resulting in compound 144 (7.5 g, 17.06 mmol) in 90.84% yield.

Synthesis of Compound 145. To a stirred solution of compound 144 (6 g, 13.65 mmol) in methanol (60 mL) was added hydrochloric acid (1 N, 35 mL). It was stirred at room temperature for 10 h, and then stirred at 80° C. for 0.5 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was cooled to room temperature and treated with methylene chloride (10 mL). The reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (30:1 to 20:1) resulting in 2.5 g of final product 145 in 45.86% yield with 99.29% HPLC purity. Compound 145 was characterized by NMR, MS and UV spectral analyses. ¹H NMR (DMSO-d₆) δ s, 1H), 8.2 (d, J=6.9 Hz, 1H), 6.5 (t, J=2.1 Hz, 1H), 5.4 (d, J=3.9 Hz, 1H), 5.20-5.07 (m, 2H), 4.37-4.15 (m, 2H), 4.08-4.05 (dd, 1H), 3.99-3.91 (m, 2H), 3.75-3.57 (m, 2H), 3.1 (d, J=1.2 Hz, 2H), 2.9 (s, 1H). Mass Spectrum m/z 400 (M+H)⁺. 422 (M+Na)⁺. UV, λ max=278 nm.

Example 49. Synthesis of 5-(2-hydroxyethoxycarbonyl methyl)uridine (03600013047)

Synthesis of Compound 147: To a solution of uridine 146 (20.0 g, 82 mmol) and NBS (21.7 g, 0.12 mol) in anhydrous dimethylfomamide was added AIBN (0.1 eq) in anhydrous dimethylfomamide, then the solution was stirred at 80° C. for 4 h. Saturated sodium thiosulfate solution (20 mL) was added. After evaporation of the solvent, the residue was precipitation with methanol to give 22.0 g compound 147 as light yellow solid.

Synthesis of Compound 148: To the solution of compound 147 (22.0 g, 66 mmol), imidazole (23.0 g, 0.33 mol) in anhydrous dimethylfomamide (100 mL) was added TBDMSCI (50.0 g, 0.32 mol) in anhydrous dimethylfomamide (50.0 mL), then the solution was stirred at rt overnight. Saturated sodium bicarbonate solution (30 mL) was added. The aqueous phase was extracted with ethyl acetate (2×300 mL), and the combined organic phase was washed with brine, and dried over sodium sulfate. After evaporation of the solvent, the residue was purified by silica gel chromatography giving 40.0 g compound 148 as light yellow syrup.

Synthesis of Compound 149: To a solution of compound 148 (10.0 g, 15.0 mmol) in anhydrous THF (100 mL) at −78° C. was added n-BuLi (2.5 M in hexane, 24 mL). The solution was stirred for 1 h, and freshly distilled ethyl glyoxylate (32 mmol) was added. The mixture was stirred for 1 h at −78° C., warmed to room temperature, and stirred overnight. Saturated ammonium chloride (50 mL) was added. The aqueous phase was extracted with ethyl acetate (3×100 mL), and the combined organic phase was washed with brine, and dried over sodium sulfate. After evaporation of the solvent, the residue was purified by silica gel chromatography, eluting with 1-3% methanol in dichloromethane, giving 4.0 g compound 149 as light yellow syrup.

Synthesis of Compound 150: 5-(Ethoxycarbonyl)(hydroxy)methyl-2′,3′,5′-tris-O-(tert-butyldimethylsilyl)uridine compound 149 (4.0 g, 5.8 mmol) was treated added HCl saturated solution in methanol (0.5 M, 50 mL). The mixture was stirred at room temperature overnight. After concentrating the mixture to dryness under reduced pressure, the residue was purified by silica gel chromatography, eluting with 8-12% methanol in dichloromethane, giving compound 150 as light yellow foam. HPLC purity: 96%. ¹H NMR (300 MHz, DMSO-_(d6)) δ 11.46 (s, 1H), 7.89-7.93 (m, 1H), 5.80-5.86 (m, 2H), 5.39 (s, 1H), 5.06-5.12 (m, 2H), 4.83 (s, 1H), 3.55-3.95 (m, 8H); ESI mass spectrum m/z: 332.8 [M+H]⁺, 254.8 [M+Na]⁺. UV, λ max=270 nm.

Example 50. Synthesis of N⁴,2′-O-dimethyl Cytidine (00900074004)

Synthesis of Compound 151. To a solution of compound 130 (5.16 g, 20.0 mmol) in dry DMF (50 mL) were added tert-butyldimethylsilyl chloride (12.0 g, 80 mmol) and imidazole (6.8 g, 100.0 mmol). The clear reaction mixture was stirred at room temperature for 24 h. Water was added, and the mixture was extracted with ethyl acetate. The combined organic phase was washed with brine, and dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using petroleum ether-ethyl acetate (5:1 to 1:1) to give 8.3 g compound 151 as colorless oil in 85%.

Synthesis of Compound 152. To a stirred mixture of 1,2,4-triazole (2.24 g, 32.5 mmol) in anhydrous methylene chloride (20 mL) at 0° C. was added POCl₃ (1.04 g, 6.8 mmol) slowly. Triethylamine (3.09 g, 30.6 mmol) was then added dropwise. The resulted suspension was stirred for 30 min. A solution of compound 151 (1.7 g, 3.4 mmol) in anhydrous dichloromethane (5 mL) was added. The reaction mixture was then continuously stirred overnight and quenched with water. The mixture was extracted with dichloromethane. The combined organic phase was washed with brine and dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure to give 1.9 g crude product compound 152 which was carried to the next step without further purification.

Synthesis of Compound 153. To a stirred solution of compound 152 (1.9 g, crude obtained above) in absolute ethanol (20 mL) was added methylamine MeNH₂ (20 mL, 40% aq. solution). The reaction mixture was stirred at room temperature for 30 min. The reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using petroleum ether-ethyl acetate (5:1 to 1:1) resulting in 1.5 g of compound 153 (86%) as a white solid.

Synthesis of N⁴,2′-O-Dimethylcytidine (154). Tetrabutylammonium fluoride trihydrate (1.58 g, 6.0 mmol) was added to a stirred solution of compound 153 (1.5 g, 3.0 mmol) in dry THF (15 mL), and the reaction mixture was stirred at room temperature for 12 h. The mixture was then concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (20:1) to give final product compound 154 (500 mg, 61.4%) as a white solid. HPLC purity: 97.56%. ¹H NMR (DMSO-d₆): δ 7.81 (d, 1H, J=7.6 Hz), 7.68 (m, 1H, NH), 5.86 (d, 1H, J=4.4 Hz), 5.72 (d, 1H, J=7.2 Hz), 5.07 (m, 2H, J=8.0 Hz), 4.05 (s, 1H), 3.81 (t, 1H, J=2.8 Hz), 3.60-3.70 (m, 2H), 3.53-3.58 (m, 1H), 3.36 (d, 3H, J=4.8 Hz), 2.74 (d, 3H, J=4.8 Hz). ESI MS, m/e 272 (M+H)⁺, 273 (2M+H)⁺. UV, λ_(max)=270.50 nm, ε=11557 L·mol⁻¹·cm⁻¹, y=11557 x, R²=0.9991 (C=2.7368×10⁻⁵˜8.2103×10⁻⁵ mol/L).

Example 51. Synthesis of 5-carbamoylmethyl Uridine (03600013036)

Synthesis of 2′,3′,5′-tri-O-acetyluridine (155). To a solution of uridine 146 (1.0 g, 4.0 mmol) in 20 mL of pyridine was added 2 mL (2.16 g, 21.0 mmol) of acetic anhydride. The resulting reaction mixture was heated to 60° C. for 3 h, and the TLC indicated its completion. The reaction mixture was concentrated, and the residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (80:1) as eluent giving 1.2 g desired product 155 in 79% yield.

Synthesis of 5-bromo-2′,3′,5′-tri-O-acetyluridine (156). Compound 155 (1.2 g, 3.0 mmol) was dissolved in 20 mL of acetic acid, and 1.2 mL (1.25 g, 11 mmol) acetic anhydride was added. The resulting mixture was cooled to 0° C. in an ice bath, and bromine (0.7 g, 4.0 mmol) was added slowly under stirring. The reaction flask was sealed, and the mixture was stirred at room temperature overnight. Ethanol was added slowly, and the mixture was concentrated under reduced pressure to dryness. The residue was co-evaporated with ethanol and purified by flash chromatography on a silica gel column using methylene chloride-methanol (80:1) as eluent providing 1.3 g desired bromo product 156 in 89% yield. ¹H NMR (CDCl₃) δ 9.10 (br, 1H), 7.82 (s, 1H), 6.07 (m, 1H), 5.26-5.35 (m, 2H), 4.30-4.41 (m, 3H), 2.20 (s, 3H), 2.11 (s, 3H), 2.09 (s, 3H).

Synthesis of 5-bromo-N³-benzoyl-2′,3′,5′-tri-O-acetyluridine (157). Compound 156 (1.3 g, 2.9 mmol) was dissolved in 40 mL of dichloromethane, and it was cooled to 0° C. To the stirred solution were added N,N-dimethylaminopyridine (DMAP) (0.50 g, 4.0 mmol) and triethylamine (0.41 mL, 0.303 g, 3.0 mmol). Benzoyl chloride (0.70 mL, 0.83 g, 5.79 mmol) was then added slowly. The reaction mixture was stirred at room temperature for 30 minutes, and treated with a mixture of pyridine and water. It was then extracted with dichloromethane. The organic phase was washed with water and dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (80:1) as eluent providing 1.4 g of desired product 157 as white foam in 87% yield.

Synthesis of N³-benzoyl-2′,3′,5′-O-triacetyluridine-5-malonic acid dimethyl ester (compound 158). N3-Benzoyl-5-bromo-2′,3′,5′-tri-O-acetyluridine (157) (1.40 g, 2.53 mmol) was dissolved in anhydrous THF (20-30 mL). To this solution were added dimethyl malonate (320 uL, 2.8 mmol) and DBU (450 uL). The reaction mixture was stirred at room temperature overnight, and small amount of acetic acid was added to quench the reaction. The mixture was concentrated and the residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (80:1) as eluent providing 1.30 g desired product 158 as white foam in 84% yield.

Synthesis of 5-(methoxycarbonyl)methyluridine (uridine 5-accetic acid methyl ester) (159). To a solution of N³-benzoyl-2′,3′,5′-tri-O-acetoxyuridine-5-malonic acid dimethyl ester (158) (1.30 g, 2.1 mmol) in 100 mL of absolute methanol was added sodium methoxide (25% in methanol, 3.5 mL). The reaction mixture was stirred at 50° C. for 16 h, and diluted with methanol. Sodium bicarbonate was added to the mixture, and the solid was filtered. The filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (20:1) as eluent providing 400 mg desired product 159 as white foam in about 70% yield. ¹H NMR (DMSO-d₆): δ 11.46 (d, 1H, J=3.0 Hz), 7.56 (d, 1H, J=3.6 Hz), 4.91 (d, 1H, J=3.6 Hz), 4.79 (t, 1H, J=4.2 Hz), 4.70 (d, 1H, J=4.2 Hz), 4.49 (d, 1H, J=3.0 Hz), 3.82-3.88 (m, 2H), 3.66-3.67 (m, 1H), 3.57-3.61 (m, 1H), 3.40-3.47 (m, 1H), 3.09 (s, 3H). ESI mass spectrum m/z 339 (M+Na)⁺.

Synthesis of Compound 160. A mixture of compound 159 (1.0 g) in ammonia saturated methanol solution (40 mL) was stirred for 2 days. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product thus obtained was recrystallized from methanol giving the desired compound 160 with 95% HPLC purity. It was characterized by NMR, MS and UV spectral analyses. ¹H NMR (D₂O): δ 7.77 (s, 1H), 5.82 (d, 1H, J=4.0 Hz), 4.22-4.28 (m, 1H), 4.11-4.20 (m, 1H), 3.95-4.05 (m, 1H), 3.60-3.80 (m, 1H), 3.20-3.30 (m, 2H). ESI mass spectrum m/z 302 (M+H)⁺, 324 (M+Na)⁺, 625 (2M+Na)⁺. UV, λ max=260 nm.

Example 52. Synthesis of 5-(isopentenylamino(FTA)methyl)uridine (03600013044)

Synthesis of Compound 161. A mixture of compound 146 (6.0 g, 24.6 mmol) and formaldehyde (12.28 g, 123 mmol, 30% aq. solution, 5 eq) was diluted with water (12 mL). The resulting reaction mixture was cooled to 10° C., and pyrrolidine (10.5 g 147 mmol, 6 eq) was added. The reaction mixture was stirred at 100° C. for 2 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (7:1 to 5:1) containing 0.2% ammonium hydroxide, resulting in compound F as white foam. This crude product thus obtained was recrystallized from isopropanol giving the desired compound 161 as a white solid with 97% HPLC purity.

Synthesis of Compound 162. To a stirred solution of compound 161 (3.0 g, 9 mmol) in absolute methanol (50 mL) was added methyl iodide (24 g). The reaction mixture was stirred at room temperature for 3 days. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure giving crude product compound 162 which was carried to the next step without further purification.

Synthesis of Compound 164. To a stirred solution of compound 162 (crude obtained above) in absolute methanol (45 mL) was added 1-bromo-3-methyl-2-butene 163 (5.4 g). The reaction mixture was stirred at room temperature for 1 h, and concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (7:1 to 5:1 to 4:1) resulting in 2.9 g compound 164.

Synthesis of Compound 165. To a solution of compound 164 (2.9 g 8.5 mmol) in dry pyridine (50 mL) was added trifluoroacetic anhydride (5 mL, 35.4 mmol, 4 eq). The reaction mixture was stirred at room temperature for 3 days as monitored by TLC for its completion. The reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using methylene chloride-methanol (25:1 to 15:1 with 0.2% ammonium hydroxide) giving final product compound 165 (410 mg, 10.2%) as a white solid. HPLC purity: 98%. The product was characterized by NMR, MS and UV spectral analyses. ¹H NMR (DMSO-d₆ 400 Hz): δ 11.50 (d, 1H, NH), 7.55 (d, 1H, J=10.4 Hz), 5.98-6.02 (m, 1H), 5.44-5.59 (m, 2H), 5.08 (s, 1H), 4.94 (t, 1H, J=5.2 Hz), 3.91-4.22 (m, 6H), 3.75 (t, 1H, J=5.2 Hz), 3.52-3.61 (m, 2H), 1.58-1.70 (m, 6H). ESI MS, m/e 438 (M+H)⁺, 460 (M+Na)⁺, 897 (2M+Na)⁺. UV, λ_(max)=275 nm.

Example 53. Synthesis of 5-{Isopentenylamino(TFA)methyl}2-thiouridine (03600013043)

Synthesis of Compound 166. To a stirred solution of compound 142 (crude) in dioxane (50 mL) was added excess amount of 1-amino-3-methyl-2-butene. The reaction mixture was stirred at room temperature overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:3 to 1:1) resulting in compound 166 (3.1 g) which was used for next step without further purification.

Synthesis of Compound 167. To a stirred solution of compound 166 (3.1 g, 7 mmol) in dry pyridine (50 mL) was cooled to 0° C., and trifluoroacetic anhydride (12 mL, 18 g, 8 mmol, 1.2 eq) was added under N₂ atmosphere. The reaction mixture was stirred at room temperature for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was treated with methylene chloride (100 mL) and sodium bicarbonate solution (100 mL, 5%). The organic phase was separated, and the aqueous phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:5 to 1:3) resulting in desired compound 167 which was used for next step without further purification.

Synthesis of Compound 168. A mixture of compound 167 (1 g) and hydrochloric acid (1 M, 20 mL) was stirred at room temperature for 30 min. Sodium carbonate was added to neutralize the reaction mixture. The solid material was filtered off, and the filtrate was concentrated under reduced pressure to dryness. The crude product was purified by flash chromatography on a silica gel column giving the desired compound 168 (370 mg) with 98.27% HPLC purity. Compound 168 was characterized by HNMR, MS and UV spectral analyses. ¹H NMR (DMSO-d₆400 Hz): δ 12.78 (d, 1H, NH), 8.10 (d, 1H, J=23.2 Hz), 6.53-6.56 (m, 1H), 5.42 (d, 1H, J=5.6 Hz), 5.06-5.16 (m, 3H), 3.90-4.23 (m, 7H), 3.59-3.68 (m, 2H), 1.56-1.69 (m, 6H). ESI MS, m/e 454 (M+H)⁺, 476 (M+Na)⁺. UV, λ_(max)=277 nm.

Example 54. Synthesis of 5-{Isopentenylamino(TFA)methyl}-2′-O-methyluridine (036000730431)

Synthesis of Compound 169. To a mixture of compound 130 (10.32 g, 40.0 mmol) and water (20 mL) were added pyrrolidine (14.2 g, 200.0 mmol) and paraformaldehyde (13.8 mL, 200.0 mmol). The reaction mixture was stirred at 105° C. for 48 h and concentrated under reduced pressure. The crude product was purified by silica gel chromatography (MeOH:DCM=1:15) on a silica gel column giving compound 169 (4.3 g, 32%) as oil.

Synthesis of Compound 170. Compound 169 (4.3 g, 12.6 mmol) was dissolved in MeOH (50 mL), and Mel (7.8 mL, 126.0 mL) was added. The reaction mixture was stirred at room temperature for 12 h, and then concentrated providing crude compound 170 which was used for next step without further purification.

Synthesis of Compound 171. The crude compound 170 (obtained above) was dissolved in MeOH (40 mL), and to the stirred solution was added compound D (3.2 g, 37.8 mmol). The reaction mixture was stirred at room temperature for 72 h and concentrated under the reduced pressure. The crude product was purified by silica gel chromatography (MeOH:DCM=1:40) giving compound 171 (1.0 g, 22%) as a white solid.

Synthesis of Compound 172. Compound 171 (1.0 g, 2.8 mmol) was dissolved in anhydrous pyridine (10 mL), and the solution was cooled to 0° C. The trifluoroacetic anhydride (2.3 g, 11.2 mmol) was added, and the reaction mixture was stirred at room temperature for 72 h. The solution was then concentrated, and the residue was purified by silica gel chromatography (EA:PE=3:2) on a silica gel column resulting in the desired compound 172 (0.33 g, 25%) as a white foam with 99.5% HPLC purity. It was characterized by NMR, MS and UV spectral analyses. ¹H NMR (CDCl₃, 400 Hz): δ 8.94 (s, 1H), 8.34 (s, 1H), 5.96-5.97 (d, 1H, J=3.6 Hz), 5.06-5.09 (t, 1H, J=6.8 Hz), 4.29-4.41 (m, 1H), 3.78-4.23 (m, 8H), 3.56-3.60 (d, 3H, J=15 Hz), 3.35-3.82 (m, 1H), 2.75-2.77 (d, 1H, J=6.4 Hz), 1.63-1.74 (t, 6H, J=12.8 Hz). ESI MS, m/e 452 (M+H)⁺, 474 (M+Na)⁺. UV, λ_(max)=267 nm.

Example 55. Synthesis of N²,2′-O-dimethylguanosine (00900072014)

Synthesis of Compound 174: To a stirred solution of 2′-O-methylguanosine (compound 173, 3.0 g, 10.0 mmol) in anhydrous pyridine was added acetic anhydride (5.0 mL) at 0° C. The resulted reaction mixture was stirred at room temperature for 4 h. Ethanol (5.0 mL) was added, and the mixture was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column giving 3.0 g compound 174 as light yellow solid.

Synthesis of Compound 175: To a stirred solution of compound 174 (3.0 g, 7.8 mmol) in 60 mL of ethanol were added p-thiocresol (3.0 g, 24 mmol), 37% aqueous formaldehyde (1.0 ml, 24 mmol), and acetic acid (6 ml), and the resulted reaction mixture was refluxed for 4-6 hr as monitored by TLC. The reaction mixture was cooled, and the resulting colorless precipitate was collected by filtration giving 2.5 g compound 175 as light yellow solid.

Synthesis of Compound 177: Sodium borohydride (0.7 g, 18.0 mmol) was added to a solution of compound 175 (3.0 g, 5.8 mmol) in dimethyl sulfoxide (15 mL). The reaction mixture was heated at 100° C. for 1-2 hr, and then cooled to room temperature. It was then quenched with acetic acid/ethanol (50 mL, v:v=1:10). The resulted colorless precipitate was filtrated out, and washed thoroughly with methanol. The crude product was dried under reduced pressure, and water was added. After further evaporation of water, the residue was crystallized from water to give N², 2′-dimethylguanosine 177 as a white solid (0.62 g, 43%). HPLC purity: 98%, ESI mass spectrum m/z 312.8 [M+H]⁺, 623 [2M+1]⁺, ¹H NMR (300 MHz, DMSO-d₆) δ 11.85 (br, 1H), 7.93 (s, 1H), 7.60 (br, 1H), 5.84 (d, J=3.9 Hz, 1H), 4.82-5.10 (br, 2H), 4.26-4.29 (m, 2H), 3.90 (s, 1H), 3.53-3.57 (m, 2H), 3.35 (s, 3H), 2.78 (s, 3H). ESI mass spectrum m/z 312 (M+H)⁺, 623 (2M+H)⁺. UV, max=258 nm.

Example 56. Synthesis of 5-methoxycarbonylmethyl-2-thiouridine (03600013035)

Synthesis of 5-Methoxycarbonylmethyl-2-thiouracil (181): A mixture of sodium methoxide (13.5 g, 0.25 mol) in 200 mL of diethyl ether was cooled to 0° C., and it was added slowly to a stirred mixture of dimethyl succinate 178 (36.5 g, 0.25 mol) and ethyl formate (18.5 g, 0.25 mol). The reaction mixture was stirred at 0° C. for 3 h, and at room temperature overnight. The solvent was evaporated, and the residue was washed thoroughly with petroleum ether resulting intermediate 180. The crude intermediate 180 was dissolved in methanol, and 19 g (0.25 mol) of thiourea was added. The reaction mixture was refluxed overnight. It was filtered, and the solid was washed with methanol. The filtrate was concentrated under reduced pressure. Flash chromatographic purification on a silica gel column resulting in the desired product 181 in 20% yield.

Synthesis of Glycosylated Compound 182: A mixture of 5-methoxycarbonyl methyl-2-thiouracil 181 (2.0 g, 10 mmol), 50 mL of HMDS, and catalytic amount of ammonium sulfate (50 mg) was refluxed at 130° C. After the mixture became clear solution, excess amount of HMDS was evaporated under reduced pressure. The residue was dissolved in 30 mL of 1,2-dichloromethane. To this solution was added protected riboside 115 (10.5 g), followed by addition of 1.73 mL (15 mmol) of SnCl₄. The reaction mixture was stirred at room temperature for 1 h, and treated with dichloromethane and saturated sodium bicarbonate. The organic phase was separated, and the aqueous phase was extracted with dichloromethne. The combined organic phase was extracted with dichloromethane. The combined organic phase was dried over anhydrous sodium sulfate. After concentrated under reduced pressure, the crude product was purified giving desired product 182.

Synthesis of Compound 183: 3 mL of sodium methoxide solution in methanol was added to a solution of compound 182 (1.2 g) in 100 mL of anhydrous methanol. The reaction mixture was stirred at room temperature for 1 h till solid disappeared. The reaction mixture was adjusted to week acid with diluted hydrochloric acid. It was then neutralized with sodium bicarbonate. The solvent was concentrated, and the residue was purified by flash chromatography on a silica gel column providing final product 182 with 99% HPLC purity. ¹H NMR (400 MHz, DMSO_(d6)) δ 12.73 (s, 1H), 8.17 (s, 1H), 6.54-6.55 (d, 1H), 5.44-5.45 (d, 1H), 5.24-5.25 (d, 1H), 5.10-5.12 (d, 1H), 3.90-4.04 (m, 3H), 3.72-3.80 (m, 1H), 3.61 (s, 4H), 3.29 (s, 3H); Mass Spectrum: m/z 332.9.0 (M)⁺ 333.8 (M+H)⁺ 354.9 (M+Na—H)⁺ 686.7 (2M+Na—H)⁺. UV, λ max=260 nm.

Example 57. Synthesis of 5-methyl-N-TFA-aminomethyl-2-selenouridine (03600013048)

Synthesis of Compound 184: A mixture of compound 145 (3.80 g, 9.52 mmol), t-butyldimethylsilyl chloride (14.35 g, 95.2 mmol), imidazole (7.54 g, 114.24 mmol) in 20 ml of anhydrous DMF was stirred at 60° C. for 12 h. The solvent was concentrated under reduced pressure, and the residue was treated with water and ethyl acetate. The organic phase was separated and the aqueous phase was extracted with ethyl acetate. The organic phase was dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated. The residue was purified by flash chromatography on a silica gel column providing 6.3 g product 184.

Synthesis of compound 185: Methyl iodide (9.56 g, 70.0 mmol, 10 eq) was added to the well stirred mixture of compound 184 (5.20 g, 7.0 mmol) and sodium bicarbonate (0.85 g, 10.12 mmol, 1.45 eq) in anhydrous DMF. The resulting reaction mixture was stirred at room temperature for 8-9 h, as indicated for the completion of the reaction by TLC. The reaction mixture was treated with dichloromethane and water. The organic phase was separated, and the aqueous phase was extracted with ethyl acetate. The organic phase was dried, and the solvent was concentrated. The residue was purified by flash chromatography on a silica gel column providing 5.60 g desired product 185.

Synthesis of compound 186: Compound 185 (5.0 g, 6.61 mmol) was dissolved in 20 mL of anhydrous ethanol. Sodium borohydride (1.30 g, 33.0 mmol) and metal selenium (2.10 g, 26.4 mmol, 8 eq) in a separate round bottom flask was cooled to 0° C. Under nitrogen protection and protection from light, 20 mL of anhydrous ethanol was added slowly. The reaction mixture was stirred for 30 min at 0° C. till the reaction mixture became clear orange solution. The solution of compound 185 in ethanol prepared above was added to the freshly prepared NaSeH₄ solution. The reaction mixture was stirred at room temperature for 2 days, and treated with dichloromethane and water. The organic phase was separated, and the aqueous phase was extracted with dichloromethane. The organic phase was concentrated, and the residue was purified by flash chromatography on a silica gel column providing 5.0 g of desired product 186.

Synthesis of compound 187: To a stirred solution of compound 186 (5.0 g, 6.34 mmol) in 20 mL of THF was added 38 mL tetrabutyl ammonium fluoride. The reaction mixture was stirred at room temperature for 2 h, and concentrated directly under reduced pressure. The residue was purified by flash chromatography on silica gel column. It was purified four times by column providing 120 mg of the desired final product 187 with 95% HPLC purity. MS ES, M/z 447 (M+H)⁺, 469.8 (M+Na)⁺. UV, λ max=315 nm.

Example 58. Synthesis of 5-methyl Dihydrouridine (03600013039)

5-Methyl-5,6-dihydrouridine 189

To a solution of 5-methyluridine 188 (3.0 g) in water (500 mL) was added catalyst 5% Rh/C (936 mg). The mixture was shaken in an atmosphere of hydrogen (˜0.34 MPa) at room temperature for 12 h. The catalyst was filtered off, and the filtrate was concentrated under reduced pressure to dryness. Several recrystallization processes using ethanol/ethyl acetate solvent system yielded a mixture of stereoisomeric product 189 (2.5 g, 82%) with 99% HPLC purity, two isomers in total. Then further recrystallization from methanol/ether resulted in one isomer-enriched sample (150 mg) as indicated by NMR because HPLC could not separate these two peaks. ¹H NMR (400 MHz, DMSO_(d6)) δ 10.20 (s, 1H), 5.60-5.70 (m, 1H), 5.02-5.10 (m, 1H), 4.88-4.93 (m, 1H), 4.75-4.85 (m, 1H), 3.89-4.02 (m, 1H), 3.82-3.88 (m, 1H), 3.63-3.70 (m, 1H), 3.32-3.55 (m, 3H), 2.95-3.10 (m, 1H), 2.52-2.65 (m, 1H); Mass Spectrum: m/z 261 (M+H)⁺, 283 (M+Na)⁺. UV, λ max=220 nm.

Example 59. Synthesis of Compound 5-ethynyl-cytidine (03600014012)

Synthesis of 5-iodocytidine 191: A mixture of cytidine 190 (15.0 g, 61.7 mmol) in 225 mL of acetic acid and 225 mL of carbon tetrachloride was warmed to 40° C., and iodine (9.6 g, 75.7 mmol) was added. To the stirred reaction mixture was added slowly a solution of iodic acid (9.6 g, 54.6 mmol) in 25 mL of water within 10 min. The reaction mixture was stirred at 40° C. for 6 h and stirred at room temperature overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (15:1 to 10:1 to 5:1) as gradient eluents resulting in 19.4 g (85.1%) desired product 5-iodocytidine (191).

Synthesis of compound 192: 5-Iodocytidine (191) (2.3 g, 6.2 mmol) was dissolved in anhydrous N,N-dimethylformamide (100 mL), and dried triethylamine (80 mL) was added. To the nitrogen-protected stirred reaction mixture were added CuI (0.8 g, 4.2 mmol), Pd(PPh₃)₄ (1.0 g, 0.87 mmol), and trimethylsilylacetylene (1.1 g, 11.2 mmol). The resulted reaction mixture was stirred at 35° C. for 4.5 h until the starting material was consumed as monitored by TLC. The volatiles were evaporated under reduced pressure, and the residue was treated with methanol. It was filtered through a pad of Celite, and the filtrate was concentrated. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (10:1 to 5:1 to 3:1) as gradient eluents giving 2.0 g (94%) compound 192.

Synthesis of compound 5-ethynyl-cytidine: Compound 192 obtained above was dissolved in 50 mL of methanol, and potassium carbonate (250 mg, 1.8 mmol) was added. The mixture was stirred at room temperature overnight. The mixture was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (10:1 to 3:1) as gradient eluents resulting final product 193, 1.2 g (76.4%). It was further triturated with methanol resulting in pure product, 5-ethynyl-cytidine, with 98.9% HPLC purity. ¹HNMR (400 MHz, DMSO-d₆) d 8.38 (s, 1H), 7.73 (bs, 1H), 6.85 (bs, 1H), 5.74 (d, 1H, J=3.2 Hz), 5.39 (d, 1H, J=4.4 Hz), 5.21 (t, 1H, J=4.8 Hz), 4.98-5.02 (m, 1H), 4.35 (s, 1H), 3.85-3.95 (m, 2H), 3.81-3.83 (m, 1H), 3.48-3.70 (m, 1H); MS (ESI) m/z 268 (M+H)⁺, 535 (2M+H)⁺, 557 (2M+^(Na))⁺. UV, λ_(max) 210.5, 233.5 and 292.5 nm.

Example 60. Synthesis of 5-Vinyl Cytidine (03600014019)

Synthesis of 5-iodocytidine (195): A mixture of cytidine (194) (15.0 g, 61.7 mmol) in 225 mL of acetic acid and 225 mL of carbon tetrachloride was warmed to 40° C., and iodine (9.6 g, 75.7 mmol) was added. To the stirred reaction mixture was added slowly a solution of iodic acid (9.6 g, 54.6 mmol) in 25 mL of water within 10 min. The reaction mixture was stirred at 40° C. for 6 h and stirred at room temperature overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (15:1 to 10:1 to 5:1) as gradient eluents resulting in 19.4 g (85.1%) desired product 5-iodocytidine (195).

Example 61. Synthesis of 5-Phenyl Cytidine (03600014021)

Synthesis of 5-iodocytidine (200): A mixture of cytidine (199) (15.0 g, 61.7 mmol) in 225 mL of acetic acid and 225 mL of carbon tetrachloride was warmed to 40° C., and iodine (9.6 g, 75.7 mmol) was added. To the stirred reaction mixture was added slowly a solution of iodic acid (9.6 g, 54.6 mmol) in 25 mL of water within 10 min. The reaction mixture was stirred at 40° C. for 6 h and stirred at room temperature overnight. Upon completion of the reaction as monitored by TLC, the reaction mixture was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using dichloromethane-methanol (15:1 to 10:1 to 5:1) as gradient eluents resulting in 19.4 g (85.1%) desired product 5-iodocytidine (200).

Synthesis of 5-phenyl cytidine 201: To a stirred solution of 5-iodocytidine (200) (10.0 g, 27 mmol) in 100 mL of water and 50 mL acetonitrile was added Pd(Ac)₂ (0.58 g, 2.6 mmol), followed by the addition of phenyl boronic acid (4.68 g, 38.4 mmol) and potassium carbonate (7.0 g, 50.4 mmol). The resulted reaction mixture was stirred at 80° C. overnight and concentrated under reduced pressure to half volume. The precipitated solid was filtered off, and the filtrate was further concentrated. The residue was triturated with methanol, and filtered. The filtrate was concentrated partially, and the resulted solution was directly purified by flash chromatography on a silica gel column using dichloromethane-methanol (8:1 to 5:1) as gradient eluents giving 710 mg (8.1%) product, which was further treated with methanol giving product 201 with 96% purity. ¹HNMR (400 MHz, DMSO-d₆); δ 8.06 (s, 1H), 7.66 (bs, 1H), 7.32-7.48 (m, 5H), 6.72 (bs, 1H), 5.81 (d, 1H, J=3.6 Hz), 5.37 (m, 1H), 5.67 (m, 1H), 4.99 (m, 1H), 3.97-4.02 (m, 3H), 3.83-3.86 (m, 1H), 3.50-3.68 (m, 2H); MS (ESI) m/z 320 (M+H)⁺, 639 (2M+H)⁺, 660 (2M+Na)⁺. UV, λ max at 202, 232 and 282 nm.

Example 62. Synthesis of N4-Benzoyl Cytidine (03600014013)

Synthesis of N4-Benzoylcytidine (203): To a stirred solution of cytidine (202) (2.43 g, 10 mmol) in anhydrous pyridine (80 mL) and DMF (30 mL) was added benzoic anhydride (3.39 g, 15 mmol). The reaction mixture was stirred at room temperature for 24 h, and treated with water. The volatiles were evaporated under reduced pressure, and the residue was purified by chromatographic column. The desired fractions were collected and concentrated. The product was treated with methanol giving 1.5 g final product 203 with 97% HPLC purity. ¹HNMR (400 MHz, DMSO-d₆) δ 11.26 (s, 1H), 8.50-8.53 (m, 1H), 7.99-8.02 (m, 1H), 7.32-7.68 (m, 4H), 5.82 (d, 1H, J=2.8 Hz), 5.54 (d, 1H, J=4.8 Hz), 5.20 (t, 1H, J=5.2 Hz), 5.08 (d, 1H, J=5.6 Hz), 3.80-4.02 (m, 3H), 3.50-3.75 (m, 2H); MS (ESI) m/z 348 (M+H)⁺, 370 (M+Na)⁺, 717 (2M+Na)⁺. UV, λ max at 259.5 and 302.5 nm.

Example 63. Synthesis of 5-beta-D-ribofuranosyl-2(1H)-pyridinone (07100015011)

Synthesis of Compound 206. To a stirred solution of compound 205 (7.0 g, 22.5 mmol, 1 eq) in dry tetrahydrofuran (100 mL) was added slowly n-butyl lithium (2.5 M solution in hexane; 9.5 mL, 24.75 mmol, 1.1 eq) at −78° C. under N₂ atmosphere. It was stirred at −78° C. for 15 min, and a solution of compound 204 (9.0 g, 22.5 mmol, 1 eq) in anhydrous tetrahydrofuran (50 mL) was added. The temperature was raised to −20° C., and the reaction mixture was stirred for an additional hour. Upon completion of the reaction as monitored by TLC, the reaction was poured into aqueous saturated ammonium chloride solution. The mixture was extracted with ethyl acetate. The combined organic phase was dried over anhydrous Na₂SO₄ The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:10 to 1:7) resulting in C-C glycosylated compound 206 (9.0 g).

Synthesis of Compound 207. To a stirred solution of compound 206 (9.0 g, 14.9 mmol, 1 eq) in dry dichloromethane (100 mL) was added Et₃SiH (13.8 mL, 149 mmol, 10 eq), followed by the slow addition of boron trifluoride-diethyl etherate complex (4.6 mL, 22.3 mmol, 1.5 eq) at −30° C. The temperature was raised to 0° C. Upon completion of the reaction as monitored by TLC, the reaction was quenched with saturated sodium bicarbonate. The mixture was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄ The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:15 to 1:10) resulting compound 207 (4.4 g) as pale yellow oil. The overall yield for two steps was 35%.

Synthesis of Compound 208. To a stirred solution of compound 207 (3.4 g, 5.8 mmol, 1 eq) in dry acetonitrile was added TMSI (12.0 mL, 87 mmol, 15 eq) at room temperature. It was stirred at room temperature for 4 h. Upon completion of the reaction as monitored by TLC, the reaction was quenched with water (10 mL). The combined organic phase was dried over anhydrous Na₂SO₄ The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using methanol-dichloromethane (1:15 to 1:5) resulting in the desired product 208 (880 mg) as white solid in 67% yield. HPLC purity: 100%. The product was characterized by NMR, MS and UV spectral analyses: ¹H NMR (400 MHz, DMSO_(d6)): δ 11.48 (s, 1H), 7.48 (d, 1H, J=2.4 Hz), 7.29 (d, 1H, J=2.0 Hz), 6.31 (d, 1H, J=9.2 Hz), 4.85-4.91 (m, 2H), 4.80 (t, 1H, J=5.6 Hz), 4.32 (d, 1H, J=7.6 Hz), 3.88 (m, 1H), 3.49-3.75 (m, 2H), 3.49 (m, 2H); ESI MS m/z 228 (M+H)⁺, 455 (2M+H)⁺, 477 (2M+Na)⁺. UV, λ_(max), 230.0 nm, 298.5 nm.

Example 64. 6-fluoro-5-beta-D-ribofuranosyl-2(1H)-pyridinone (07100015012)

Synthesis of Compound 211. To a stirred solution of compound 210 (5.4 g, 16.4 mmol, 1.1 eq) in dry tetrahydrofuran (80 mL) was added slowly n-butyl lithium (2.5 M solution in hexane; 6.5 mL, 17.9 mmol, 1.2 eq) at −78° C. under N₂ atmosphere. It was stirred at −78° C. for 15 min, and a solution of compound 209 (6.2 g, 14.9 mmol, 1 eq) in anhydrous tetrahydrofuran (50 mL) was added. The temperature was raised to −20° C., and the reaction mixture was stirred for 1 h. Upon completion of the reaction as monitored by TLC, the reaction mixture was poured into saturated aqueous ammonium chloride solution. The mixture was extracted with ethyl acetate. The combined organic phase was dried over anhydrous Na₂SO₄ The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:15 to 1:10) resulting in compound 211 (6.0 g) as yellow oil.

Synthesis of Compound 212. To a stirred solution of compound 211 (6.0 g, 9.6 mmol, 1 eq) in dry dichloromethane (80 mL) was added Et₃SiH (15.0 mL, 96 mmol, 10 eq), followed by the slow addition of boron trifluoride-diethyl etherate complex (5.2 mL, 19.2 mmol, 2 eq) at −30° C. The temperature was raised to 0° C. Upon completion of the reaction as monitored by TLC, the reaction was quenched with aqueous saturated sodium bicarbonate solution. The mixture was extracted with dichloromethane. The combined organic phase was dried over anhydrous Na₂SO₄ The drying agent was filtered off, and the filtrate was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:20 to 1:10) resulting in compound 212 (3.8 g) as yellow oil. The overall yield for two steps was 42.2%.

Synthesis of Compound 213. To a stirred solution of compound 212 (3.8 g, 6.27 mmol, 1 eq) in dry acetonitrile was added TMSI (15.0 mL, 125.4 mmol, 20 eq) at room temperature. It was stirred at room temperature for 4 h. Upon completion of the reaction as monitored by TLC, the reaction was quenched with water (10 mL). The mixture was concentrated to dryness under reduced pressure. The crude product thus obtained was purified by flash chromatography on a silica gel column using methanol-dichloromethane (1:15 to 1:10) resulting in compound 213 (270 mg) as white solid in 17.5% yield. HPLC purity: 95.6%. ¹H NMR (400 MHz, DMSO_(d6)): δ 11.25 (s, 1H), 7.77-7.79 (m, 1H), 6.56 (d, 1H), 4.69-5.01 (m, 4H), 3.76-3.99 (m, 3H), 3.49-3.55 (m, 2H). ESI MS m/z 246 (M+H)⁺, 268 (M+Na)⁺. UV, λ_(max), 217.5 nm, 274.0 nm.

Example 65. Synthesis of 3-methyl-5-beta-D-ribofuranosyl-2(1H)-pyridinone (07100015017)

Synthesis of compound 216. Compound 214 (2.14 g, 6.6 mmol, 1.1 eq) was dissolved in anhydrous tetrahydrofuran (50 mL), and it was cooled to −78° C. under nitrogen atmosphere. n-Butyl lithium (2.5 M solution in hexane, 3.0 mL, 1.2 eq) was added slowly to the stirred solution at −78° C. The resulted reaction mixture was stirred at the low temperature for 15 min, and a solution of compound 215 (1.3 g) in anhydrous tetrahydrofuran (10 mL) was added. The temperature was raised to −20° C., and it was stirred for 1 h. Upon the completion of the reaction as monitored by TLC, the reaction mixture was poured in to aqueous saturated ammonium chloride solution. It was extracted with ethyl acetate, and the organic phase was dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:10 to 1:7) resulting in the compound 216 (2.0 g, 52.6%).

Synthesis of compound 217: A solution of compound 216 (2.0 g, 3.2 mmol) in 20 mL of anhydrous dichloromethane was cooled to −30° C. To this stirred solution at the low temperature was added Et₃SiH (10 eq), followed by addition of boron trifluoride etherate (1.5 eq). The temperature was brought to 0° C. and continued to stir till completion as monitored by TLC. The reaction mixture was treated with saturated sodium bicarbonate solution, and extracted with dichloromethane. The combined organic phase was dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The resulted residue was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:15 to 1:10) resulting in the desired compound 217 (1.8 g, 92%).

Synthesis of compound 218: Compound 217 (1.0 g, 1.7 mmol) was dissolved in anhydrous acetonitrile, and TMSI (2.3 mL, 10 eq) was added at room temperature under stirring. The reaction mixture was stirred at room temperature for 3 h and treated with 5 mL of water to quench the reaction. The mixture was concentrated under reduced pressure, and the residue was purified by flash chromatography on a silica gel column using methanol-dichloromethane (1:15 to 1:10) as eluent giving the desired product 218 (350 mg, 87%). HPLC purity: 97%; ¹H NMR (400 MHz, DMSO_(d6)): δ 11.34 (s, 1H), 7.34 (s, 1H), 7.16 (d, 1H, J=2.0 Hz), 4.79-4.95 (m, 3H), 4.26-4.30 (m, 3H), 4.85-4.88 (m, 1H), 3.67-3.74 (m, 2H), 3.35-3.50 (m, 2H), 1.97 (s, 3H). ESI MS m/z 242 (M+H)⁺, 264 (M+Na)⁺, 505 (2M+Na)⁺. UV, λ_(max), 232.5 nm, 297.5 nm.

Example 66. Synthesis of 6-methyl-5-beta-D-ribofuranosyl-2(1H)-pyridinone (07100015013)

Synthesis of compound 221. Compound 219 (4.0 g, 12.3 mmol, 1.1 eq) was dissolved in anhydrous tetrahydrofuran (80 mL), and it was cooled to −78° C. under nitrogen atmosphere. n-Butyl lithium (2.5 M solution in hexane, 5.4 mL, 1.2 eq) was added slowly to the stirred solution at −78° C. The resulted reaction mixture was stirred at the low temperature for 15 min, and a solution of compound 220 (4.68 g) in anhydrous tetrahydrofuran (30 mL) was added. The temperature was raised to −20° C., and it was stirred for 1 h. Upon the completion of the reaction as monitored by TLC, the reaction mixture was poured in to aqueous saturated ammonium chloride solution. It was extracted with ethyl acetate, and the organic phase was dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:10 to 1:7) resulting in the compound 221 (4.2 g crude).

Synthesis of compound 222: A solution of crude compound 221 (4.2 g) in 40 mL of anhydrous dichloromethane was cooled to −30° C. To this stirred solution at the low temperature was added Et₃SiH (8.0 mL, 10 eq), followed by addition of boron trifluoride etherate (2.4 mL, 1.5 eq). The temperature was brought to 0° C. and continued to stir till completion as monitored by TLC. The reaction mixture was treated with saturated sodium bicarbonate solution, and extracted with dichloromethane. The combined organic phase was dried over anhydrous sodium sulfate. The drying agent was filtered off, and the filtrate was concentrated under reduced pressure. The resulted residue was purified by flash chromatography on a silica gel column using ethyl acetate-petroleum ether (1:15 to 1:10) resulting in the desired compound 222 (2.0 g).

Synthesis of compound 223: Compound 222 (2.0 g, 3.4 mmol) was dissolved in anhydrous acetonitrile, and TMSI (4.6 mL, 10 eq) was added at room temperature under stirring. The reaction mixture was stirred at room temperature for 3 h and treated with 5 mL of water to quench the reaction. The mixture was concentrated under reduced pressure, and the residue was purified by flash chromatography on a silica gel column using methanol-dichloromethane (1:15 to 1:10) as eluent giving the desired product 223 (350 mg). After several more column purification, it was obtained with 96% HPLC purity; ¹H NMR (400 MHz, DMSO_(d6)): δ 11.45 (s, 1H), 7.51 (d, 1H, J=8.5 Hz), 6.16 (d, 1H, J=9.6 Hz), 4.70-4.93 (m, 3H), 4.53-4.57 (m, 1H), 4.85-4.88 (m, 1H), 3.62-3.78 (m, 2H), 3.22-3.50 (m, 2H), 2.21 (s, 3H). ESI MS m/z 242 (M+H)⁺, 264 (M+Na)⁺, 505 (2M+Na)⁺. UV, λ_(max), 233.0 nm, 303.5 nm.

Example 67. Synthesis of 5-Ethyl-CTP (03601014039)

5-Ethyl-CTP (225): A solution of 5-ethyl-cytidine 224 (102.0 mg, 0.38 mmol; applied heat to make it soluble) and proton sponge (122.2 mg, 0.57 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (70.96 μL, 0.76 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (368.84 μL, 2.28 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (625.5 mg, 1.14 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (15.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 ml/min; retention time: 15.57-16.20 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-ethyl-cytidine-TP (225) as a tetrakis(triethylammonium salt) (51.9 mg, 26.32%, based on ₂₇₈=6,851.4 Lmol⁻¹cm⁻¹). UV max=278 nm; MS: m/e 509.90 (M−H).

Example 68. Synthesis of 5-Methoxy-CTP (03601014030)

5-Methoxy-CTP (227): A solution of 5-methoxy-cytidine 226 (100.0 mg, 0.36 mmol; applied heat to make it soluble) and proton sponge (115.72 mg, 0.54 mmol, 1.5 equiv.) in trimethyl phosphate (0.8 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (67.23 μL, 0.72 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (349.4 μL, 1.44 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (592.56 mg, 1.08 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (14.2 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 15.8-16.7 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-methoxy-cytidine-TP (227) as a tetrakis(triethylammonium salt) (38.55 mg, 20.83%, based on ε₂₈₉=6,049.6 Lmol⁻¹cm⁻¹). UV max=289 nm; MS: m/e 511.90 (M−H).

Example 69. Synthesis of 5-ethynyl-cytidine (03601014012)

5-Ethynyl-CTP (229): A solution of 5-ethynyl-cytidine 228 (118.0 mg, 0.44 mmol; applied heat to make it soluble) and proton sponge (141.44 mg, 0.66 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (82.16 μL, 0.88 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (427.0 μL, 1.76 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (724.24 mg, 1.32 mmol, 3.0 equiv.) in acetonitrile (3.0 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.3 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 14.1-15.1 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-ethynyl-cytidine-TP (229) as a tetrakis(triethylammonium salt) (53.05 mg, 22.72%, based on ε₂₉₂=6,308.3 Lmol⁻¹cm⁻¹). UV max=292 nm; MS: m/e 505.85 (M−H).

Example 70. Synthesis of 5-Fluoro-CTP (009010140411

5-Fluoro-CTP (231): A solution of 5-fluoro-cytidine 230 (124.0 mg, 0.47 mmol; applied heat to make it soluble) and proton sponge (151.0 mg, 0.7 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (87.76 μL, 0.94 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (456.2 μL, 1.88 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (773.6 mg, 1.41 mmol, 3.0 equiv.) in acetonitrile (3.0 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (18.5 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 14.8-15.8 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-fluoro-cytidine-TP (231) as a tetrakis(triethylammonium salt) (47.3 mg, 20.0%, based on ε₂₈₀=9,000.0 Lmol⁻¹cm⁻¹). UV max=280 nm; MS: m/e 499.80 (M−H).

Example 71. Synthesis of 5-Phenyl-CTP (03601014021)

5-Phenyl-CTP (233): A solution of 5-phenyl-cytidine 232 (102.0 mg, 0.32 mmol; applied heat to make it soluble) and proton sponge (102.68 mg, 0.48 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (59.5 μL, 0.64 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (304.4 μL, 1.28 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (525.78 mg, 0.95 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (12.5 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 18.1-19.2 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-phenyl-cytidine-TP (233) as a tetrakis(triethylammonium salt) (29.5 mg, 16.56%, based on ε₂₈₅=7,052.2 Lmol⁻¹cm⁻¹). UV max=285 nm; MS: m/e 557.80 (M−H).

Example 72. Synthesis of N⁴-Benzoyl-CTP (03601014013)

N⁴-Benzoyl-CTP (235): A solution of N⁴-benzoyl-cytidine 234 (154.0 mg, 0.44 mmol; applied heat to make it soluble) and proton sponge (141.44 mg, 0.66 mmol, 1.5 equiv.) in trimethyl phosphate (2.0 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (82.16 μL, 0.88 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (427.0 μL, 1.76 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (724.24 mg, 1.32 mmol, 3.0 equiv.) in acetonitrile (3.0 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.3 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 18.0-19.7 min). Fractions containing the desired were pooled together and lyophilized to yield the N⁴-benzoyl-cytidine-TP (235) as a tetrakis(triethylammonium salt) (35.25 mg, 13.64%, based on ε₂₅₉=22,886.0 Lmorl⁻¹cm⁻¹). UV max=259 nm & 304 nm; MS: m/e 585.95 (M−H).

Example 73. Synthesis of N⁶-Isopentenyl-ATP (00901011044)

N⁶-Isopentenyl-ATP (237): A solution of N⁶-isopentenyl-adenosine 236 (146.0 mg, 0.44 mmol; applied heat to make it soluble) and proton sponge (139.95 mg, 0.65 mmol, 1.5 equiv.) in trimethyl phosphate (1.5 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (60.8 μL, 0.65 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (414.0 μL, 1.74 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (716.60 mg, 1.30 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (17.0 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 28.0-31.0 min). Fractions containing the desired were pooled together and lyophilized to yield the N⁶-isopentenyl-adenosine-TP (60) as a tetrakis(triethylammonium salt) (23.3 mg, 9.32%, based on ε₂₆₈=15,000.0 Lmol⁻¹cm⁻¹). UV max=268 nm; MS: m/e 573.90 (M−H).

Example 74. Synthesis of 8-Methyl-ATP (00901011045)

8-Methyl-ATP (239): A solution of 8-methyl-adenosine 238 (112.0 mg, 0.4 mmol; applied heat to make it soluble) and proton sponge (139.95 mg, 0.65 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (74.23 μL, 0.8 mmol, 2.0 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (379.5 μL, 1.60 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (655.43 mg, 1.20 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (15.5 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 18.25-19.50 min). Fractions containing the desired were pooled together and lyophilized to yield the 8-methyl-adenosine-TP (239) as a tetrakis(triethylammonium salt) (7.56 mg, 3.25%, based on ε₂₅₉=15,000.0 Lmol⁻¹cm⁻¹). UV max=259 nm; MS: m/e 519.90 (M−H).

Example 75. Synthesis of 5-Isopentenyl-aminomethyl-UTP (00901013042)

5-Isopentenyl-aminomethyl-UTP (242): A solution of 5-isopentenyl-amino(TFA)methyl-uridine 240 (116.0 mg, 0.26 mmol; applied heat to make it soluble) and proton sponge (85.3 mg, 0.39 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (44.5 μL, 0.47 mmol, 1.8 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (252.0 μL, 1.06 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (436.55 mg, 0.79 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (10.4 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then treated with conc. NH₄OH (22.0 mL) and stirred vigorously at room temperature overnight. The LCMS analysis showed the formation of the desired deprotected product. The solvent was then evaporated under rotavap and lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 19.4-20.8 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-isopentenyl-aminomethyl-uridine-TP (242) as a tetrakis(triethylammonium salt) (27.21 mg, 18.10%, based on ε₂₆₇=9,000.0 Lmol⁻¹cm⁻¹). UV max=267 nm; MS: m/e 579.85 (M−H).

Example 76. Synthesis of 5-Hydroxy-UTP (00901013054)

5-Hydroxy-UTP (244): A solution of 5-hydroxy-uridine 243 (121.0 mg, 0.46 mmol; applied heat to make it soluble) and proton sponge (149.48 mg, 0.69 mmol, 1.5 equiv.) in trimethyl phosphate (1.0 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (78.0 μL, 0.84 mmol, 1.8 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (443.0 μL, 1.86 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (765.4 mg, 1.40 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (18.1 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 11.20-12.50 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-hydroxy-uridine-TP (244) as a tetrakis(triethylammonium salt) (9.42 mg, 4.13%, based on ε₂₈₀=9,000.0 Lmol⁻¹cm⁻¹). UV max=280 nm; MS: m/e 498.85 (M−H).

Example 77 Synthesis of 5-Carbamoylmethyl-UTP (03601013036)

5-Carbamoylmethyl-UTP (246): A solution of 5-carbamoylmethyl-uridine 245 (114.0 mg, 0.38 mmol; applied heat to make it soluble) and proton sponge (121.6 mg, 0.57 mmol, 1.5 equiv.) in trimethyl phosphate (0.9 mL) was stirred for 10.0 minutes at 0° C. Phosphorus oxychloride (63.5 μL, 0.68 mmol, 1.8 equiv.) was added dropwise to the solution and it was then kept stirring for 2.0 hours under N₂ atmosphere. A mixture of tributylamine (360.0 μL, 1.51 mmol, 4.0 equiv.) and bis(tributylammonium) pyrophosphate (622.86 mg, 1.13 mmol, 3.0 equiv.) in acetonitrile (2.5 mL) was added at once. After ˜25 minutes, the reaction was quenched with 0.2 M TEAB buffer (14.8 mL) and the clear solution was stirred at room temperature for an hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was then lyophilized overnight. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 10.4-11.40 min). Fractions containing the desired were pooled together and lyophilized to yield the 5-carbamoylmethyl-uridine-TP (246) as a tetrakis(triethylammonium salt) (21.46 mg, 10.52%, based on ε₂₆₅=9,000.0 Lmol⁻¹cm⁻¹). UV max=265 nm; MS: m/e 539.90 (M−H).

Example 78. Synthesis of 5-beta-D-Ribofuranosyl-2(1H)-pyridinone-TP (07101015011)

5-beta-D-Ribofuranosyl-2(1H)-pyridinone-TP (248): A solution of 5-((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyridin-2(1H)-one 247 (101.0 mg, 0.44 mmol) in trimethyl phosphate (1.0 mL) was heated until fully dissolved. Proton sponge (140.0 mg, 0.66 mmol, 1.5 equiv.) was added and the resulting reaction mixture was cooled to 0° C. and stirred for 10 minutes. Phosphorus oxychloride (61.0 μL, 0.66 mmol, 1.5 equiv.) was added dropwise to the solution and it was then kept stirring for 1.5 hours under N₂ atmosphere. A mixture of tributylamine (0.44 mL) and bis(tributylammonium) pyrophosphate (720.0 mg, 1.32 mmol, 3 equiv.) in acetonitrile (2.0 mL) was added at once. After ˜20 minutes, the reaction was quenched with 0.2 M TEAB buffer (12.0 mL) and the clear solution was stirred at room temperature for 1 hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was concentrated under reduced pressure. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 10.7-11.2 min). Fractions containing the desired triphosphate were pooled and lyophilized to yield 2-pyridinone-TP (248) as a tetrakis(triethylammonium) salt (0.77 mg, based on ε₂₉₉=5,969.8 Lmol⁻¹cm⁻¹). UV max=299 nm; MS: m/e 465.85 (M−H).

Example 79. Synthesis of 6-Fluoro-5-beta-D-ribofuranosyl-2(1H)-pyridinone-TP (07101015012)

6-Fluoro-5-beta-D-ribofuranosyl-2(1H)-pyridinone-TP (250): A solution of 5-((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-fluoropyridin-2(1H)-one 249 (105.0 mg, 0.43 mmol) in trimethyl phosphate (1.0 mL) was heated until fully dissolved. Proton sponge (140.0 mg, 0.65 mmol, 1.5 equiv.) was added and the resulting reaction mixture was cooled to 0° C. and stirred for 10 minutes. Phosphorus oxychloride (61.0 μL, 0.65 mmol, 1.5 equiv.) was added dropwise to the solution and it was then kept stirring for 2 hours under N₂ atmosphere. A mixture of tributylamine (0.42 mL) and bis(tributylammonium) pyrophosphate (710.0 mg, 1.29 mmol, 3 equiv.) in acetonitrile (2.0 mL) was added at once. After ˜20 minutes, the reaction was quenched with 0.2 M TEAB buffer (12.0 mL) and the clear solution was stirred at room temperature for 1 hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was concentrated under reduced pressure. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 11.1-11.5 min). Fractions containing the desired triphosphate were pooled and lyophilized to yield 6-fluoro-2-pyridinone-TP (250) as a tetrakis(triethylammonium) salt (1.99 mg, based on ε₂₇₄=5,468.2 Lmol⁻¹cm⁻¹). UV max=291 nm; MS: m/e 483.8 (M−H).

Example 80. Synthesis of 3-Methyl-5-beta-D-ribofuranosyl-2-(1H)-pyridinone-TP (07101015017)

3-Methyl-5-beta-D-ribofuranosyl-2(1H)-pyridinone-TP (252): A solution of 5-((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3-methylpyridin-2(1H)-one 251 (109.0 mg, 0.45 mmol) in trimethyl phosphate (1.1 mL) was heated until fully dissolved. Proton sponge (145.0 mg, 0.68 mmol, 1.5 equiv.) was added and the resulting reaction mixture was cooled to 0° C. and stirred for 10 minutes. Phosphorus oxychloride (63.0 μL, 0.68 mmol, 1.5 equiv.) was added dropwise to the solution and it was then kept stirring for 1.5 hours under N₂ atmosphere. A mixture of tributylamine (0.44 mL) and bis(tributylammonium) pyrophosphate (740.0 mg, 1.35 mmol, 3 equiv.) in acetonitrile (2.0 mL) was added at once. After ˜20 minutes, the reaction was quenched with 0.2 M TEAB buffer (12.0 mL) and the clear solution was stirred at room temperature for 1 hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was concentrated under reduced pressure. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 11.0-11.55 min). Fractions containing the desired triphosphate were pooled and lyophilized to yield 3-methyl-2-pyridinone-TP (252) as a tetrakis(triethylammonium) salt (1.2 mg, based on ε₂₉₈=5,849.8 Lmol⁻¹cm⁻¹). UV max=298 nm; MS: m/e 479.85 (M−H).

Example 81. Synthesis of 6-Methyl-5-beta-D-ribofuranosyl-2(1H)-pyridinone-TP (07101015013)

6-Methyl-5-beta-D-ribofuranosyl-2(1H)-pyridinone-TP (254): 5-((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-6-methylpyridin-2(1H)-one 253 (101.0 mg, 0.42 mmol) in trimethyl phosphate (0.96 mL) was heated until fully dissolved. Proton sponge (135.0 mg, 0.63 mmol, 1.5 equiv.) was added and the resulting reaction mixture was cooled to 0° C. and stirred for 10 minutes. Phosphorus oxychloride (59.0 μL, 0.63 mmol, 1.5 equiv.) was added dropwise to the solution and it was then kept stirring for 1.5 hours under N₂ atmosphere. A mixture of tributylamine (0.42 mL) and bis(tributylammonium) pyrophosphate (690.0 mg, 1.26 mmol, 3 equiv.) in acetonitrile (2.0 mL) was added at once. After ˜20 minutes, the reaction was quenched with 0.2 M TEAB buffer (12.0 mL) and the clear solution was stirred at room temperature for 1 hour. LCMS analysis indicated the formation of the corresponding triphosphate. The reaction mixture was concentrated under reduced pressure. The crude reaction mixture was purified by anion exchange followed by HPLC (Waters, Phenomenex C18 reverse-phase preparative column, 250×21.2 mm, 10.0 micron; gradient (1%): 100% A for 3.0 min, then 1% B/min, A=100 mM TEAA buffer, B=ACN; flow rate: 10.0 mL/min; retention time: 4.75-5.1 min). Fractions containing the desired triphosphate were pooled and lyophilized to yield 6-methyl-2-pyridinone-TP (254) as a tetrakis(triethylammonium) salt (1.14 mg, based on ε₃₀₄=7,897.7 Lmol⁻¹cm⁻¹). UV max=304 nm; MS: m/e 479.85 (M−H).

Example 82. DNA and mRNA Sequences for Constructs Used to Screen Compounds of the Invention

GCSF DNA SEQ ID NO: 1 GGGAGATCAGAGAGAAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGCCGGTCC CGCGACCCAAAGCCCCATGAAACTTATGGCCCTGCAGTTGCTGCTTTGGCACTCGGCCCTCTGG ACAGTCCAAGAAGCGACTCCTCTCGGACCTGCCTCATCGTTGCCGCAGTCATTCCTTTTGAAGT GTCTGGAGCAGGTGCGAAAGATTCAGGGCGATGGAGCCGCACTCCAAGAGAAGCTCTGCGCGA CATACAAACTTTGCCATCCCGAGGAGCTCGTACTGCTCGGGCACAGCTTGGGGATTCCCTGGG CTCCTCTCTCGTCCTGTCCGTCGCAGGCTTTGCAGTTGGCAGGGTGCCTTTCCCAGCTCCACTC CGGTTTGTTCTTGTATCAGGGACTGCTGCAAGCCCTTGAGGGAATCTCGCCAGAATTGGGCCCG ACGCTGGACACGTTGCAGCTCGACGTGGCGGATTTCGCAACAACCATCTGGCAGCAGATGGAG GAACTGGGGATGGCACCCGCGCTGCAGCCCACGCAGGGGGCAATGCCGGCCTTTGCGTCCGC GTTTCAGCGCAGGGCGGGTGGAGTCCTCGTAGCGAGCCACCTTCAATCATTTTTGGAAGTCTCG TACCGGGTGCTGAGACATCTTGCGCAGCCGTGATAATAGGCTGGAGCCTCGGTGGCCATGCTT CTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCCCCGTGGTCTTT GAATAAAGTCTGAGTGGGCGGCTCTAGA GCSF mRNA SEO ID NO: 2 GGGAGAUCAGAGAGAAAAGAAGAGUAAGAAGAAAUAUAAGAGCCACCAUGGCCGGUC CCGCGACCCAAAGCCCCAUGAAACUUAUGGCCCUGCAGUUGCUGCUUUGGCACUCGGCCCUC UGGACAGUCCAAGAAGCGACUCCUCUCGGACCUGCCUCAUCGUUGCCGCAGUCAUUCCUUUU GAAGUGUCUGGAGCAGGUGCGAAAGAUUCAGGGCGAUGGAGCCGCACUCCAAGAGAAGCUC UGCGCGACAUACAAACUUUGCCAUCCCGAGGAGCUCGUACUGCUCGGGCACAGCUUGGGGA UUCCCUGGGCUCCUCUCUCGUCCUGUCCGUCGCAGGCUUUGCAGUUGGCAGGGUGCCUUUC CCAGCUCCACUCCGGUUUGUUCUUGUAUCAGGGACUGCUGCAAGCCCUUGAGGGAAUCUCG CCAGAAUUGGGCCCGACGCUGGACACGUUGCAGCUCGACGUGGCGGAUUUCGCAACAACCA UCUGGCAGCAGAUGGAGGAACUGGGGAUGGCACCCGCGCUGCAGCCCACGCAGGGGGCAAU GCCGGCCUUUGCGUCCGCGUUUCAGCGCAGGGCGGGUGGAGUCCUCGUAGCGAGCCACCUU CAAUCAUUUUUGGAAGUCUCGUACCGGGUGCUGAGACAUCUUGCGCAGCCGUGAUAAUAGGC UGGAGCCUCGGUGGCCAUGCUUCUUGCCCCUUGGGCCUCCCCCCAGCCCCUCCUCCCCUUC CUGCACCCGUACCCCCGUGGUCUUUGAAUAAAGUCUGAGUGGGCGGCUCUAGA Luciferase DNA SEQ ID NO: 3 GGGAAATAAGAGAGAAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGAAGATGCG AAGAACATCAAGAAGGGACCTGCCCCGTTTTACCCTTTGGAGGACGGTACAGCAGGAGAACAG CTCCACAAGGCGATGAAACGCTACGCCCTGGTCCCCGGAACGATTGCGTTTACCGATGCACATA TTGAGGTAGACATCACATACGCAGAATACTTCGAAATGTCGGTGAGGCTGGCGGAAGCGATGAA GAGATATGGTCTTAACACTAATCACCGCATCGTGGTGTGTTCGGAGAACTCATTGCAGTTTTTCA TGCCGGTCCTTGGAGCACTTTTCATCGGGGTCGCAGTCGCGCCAGCGAACGACATCTACAATGA GCGGGAACTCTTGAATAGCATGGGAATCTCCCAGCCGACGGTCGTGTTTGTCTCCAAAAAGGGG CTGCAGAAAATCCTCAACGTGCAGAAGAAGCTCCCCATTATTCAAAAGATCATCATTATGGATAG CAAGACAGATTACCAAGGGTTCCAGTCGATGTATACCTTTGTGACATCGCATTTGCCGCCAGGG TTTAACGAGTATGACTTCGTCCCCGAGTCATTTGACAGAGATAAAACCATCGCGCTGATTATGAA TTCCTCGGGTAGCACCGGTTTGCCAAAGGGGGTGGCGTTGCCCCACCGCACTGCTTGTGTGCG GTTCTCGCACGCTAGGGATCCTATCTTTGGTAATCAGATCATTCCCGACACAGCAATCCTGTCCG TGGTACCTTTTCATCACGGTTTTGGCATGTTCACGACTCTCGGCTATTTGATTTGCGGTTTCAGG GTCGTACTTATGTATCGGTTCGAGGAAGAACTGTTTTTGAGATCCTTGCAAGATTACAAGATCCA GTCGGCCCTCCTTGTGCCAACGCTTTTCTCATTCTTTGCGAAATCGACACTTATTGATAAGTATG ACCTTTCCAATCTGCATGAGATTGCCTCAGGGGGAGCGCCGCTTAGCAAGGAAGTCGGGGAGG CAGTGGCCAAGCGCTTCCACCTTCCCGGAATTCGGCAGGGATACGGGCTCACGGAGACAACAT CCGCGATCCTTATCACGCCCGAGGGTGACGATAAGCCGGGAGCCGTCGGAAAAGTGGTCCCCT TCTTTGAAGCCAAGGTCGTAGACCTCGACACGGGAAAAACCCTCGGAGTGAACCAGAGGGGCG AGCTCTGCGTGAGAGGGCCGATGATCATGTCAGGTTACGTGAATAACCCTGAAGCGACGAATGC GCTGATCGACAAGGATGGGTGGTTGCATTCGGGAGACATTGCCTATTGGGATGAGGATGAGCA CTTCTTTATCGTAGATCGACTTAAGAGCTTGATCAAATACAAAGGCTATCAGGTAGCGCCTGCCG AGCTCGAGTCAATCCTGCTCCAGCACCCCAACATTTTCGACGCCGGAGTGGCCGGGTTGCCCG ATGACGACGCGGGTGAGCTGCCAGCGGCCGTGGTAGTCCTCGAACATGGGAAAACAATGACCG AAAAGGAGATCGTGGACTACGTAGCATCACAAGTGACGACTGCGAAGAAACTGAGGGGAGGGG TAGTCTTTGTGGACGAGGTCCCGAAAGGCTTGACTGGGAAGCTTGACGCTCGCAAAATCCGGG AAATCCTGATTAAGGCAAAGAAAGGCGGGAAAATCGCTGTCTGATAATAGGCTGGAGCCTCGGT GGCCATGCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCC CCGTGGTCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA Luciferase mRNA SEO ID NO: 4 GGGAAAUAAGAGAGAAAAGAAGAGUAAGAAGAAAUAUAAGAGCCACCAUGGAAGAUGC GAAGAACAUCAAGAAGGGACCUGCCCCGUUUUACCCUUUGGAGGACGGUACAGCAGGAGAAC AGCUCCACAAGGCGAUGAAACGCUACGCCCUGGUCCCCGGAACGAUUGCGUUUACCGAUGCA CAUAUUGAGGUAGACAUCACAUACGCAGAAUACUUCGAAAUGUCGGUGAGGCUGGCGGAAGC GAUGAAGAGAUAUGGUCUUAACACUAAUCACCGCAUCGUGGUGUGUUCGGAGAACUCAUUGC AGUUUUUCAUGCCGGUCCUUGGAGCACUUUUCAUCGGGGUCGCAGUCGCGCCAGCGAACGA CAUCUACAAUGAGCGGGAACUCUUGAAUAGCAUGGGAAUCUCCCAGCCGACGGUCGUGUUUG UCUCCAAAAAGGGGCUGCAGAAAAUCCUCAACGUGCAGAAGAAGCUCCCCAUUAUUCAAAAGA UCAUCAUUAUGGAUAGCAAGACAGAUUACCAAGGGUUCCAGUCGAUGUAUACCUUUGUGACA UCGCAUUUGCCGCCAGGGUUUAACGAGUAUGACUUCGUCCCCGAGUCAUUUGACAGAGAUAA AACCAUCGCGCUGAUUAUGAAUUCCUCGGGUAGCACCGGUUUGCCAAAGGGGGUGGCGUUG CCCCACCGCACUGCUUGUGUGCGGUUCUCGCACGCUAGGGAUCCUAUCUUUGGUAAUCAGA UCAUUCCCGACACAGCAAUCCUGUCCGUGGUACCUUUUCAUCACGGUUUUGGCAUGUUCACG ACUCUCGGCUAUUUGAUUUGCGGUUUCAGGGUCGUACUUAUGUAUCGGUUCGAGGAAGAAC UGUUUUUGAGAUCCUUGCAAGAUUACAAGAUCCAGUCGGCCCUCCUUGUGCCAACGCUUUUC UCAUUCUUUGCGAAAUCGACACUUAUUGAUAAGUAUGACCUUUCCAAUCUGCAUGAGAUUGC CUCAGGGGGAGCGCCGCUUAGCAAGGAAGUCGGGGAGGCAGUGGCCAAGCGCUUCCACCUU CCCGGAAUUCGGCAGGGAUACGGGCUCACGGAGACAACAUCCGCGAUCCUUAUCACGCCCGA GGGUGACGAUAAGCCGGGAGCCGUCGGAAAAGUGGUCCCCUUCUUUGAAGCCAAGGUCGUA GACCUCGACACGGGAAAAACCCUCGGAGUGAACCAGAGGGGCGAGCUCUGCGUGAGAGGGC CGAUGAUCAUGUCAGGUUACGUGAAUAACCCUGAAGCGACGAAUGCGCUGAUCGACAAGGAU GGGUGGUUGCAUUCGGGAGACAUUGCCUAUUGGGAUGAGGAUGAGCACUUCUUUAUCGUAG AUCGACUUAAGAGCUUGAUCAAAUACAAAGGCUAUCAGGUAGCGCCUGCCGAGCUCGAGUCA AUCCUGCUCCAGCACCCCAACAUUUUCGACGCCGGAGUGGCCGGGUUGCCCGAUGACGACG CGGGUGAGCUGCCAGCGGCCGUGGUAGUCCUCGAACAUGGGAAAACAAUGACCGAAAAGGA GAUCGUGGACUACGUAGCAUCACAAGUGACGACUGCGAAGAAACUGAGGGGAGGGGUAGUC UUUGUGGACGAGGUCCCGAAAGGCUUGACUGGGAAGCUUGACGCUCGCAAAAUCCGGGAAA UCCUGAUUAAGGCAAAGAAAGGCGGGAAAAUCGCUGUCUGAUAAUAGGCUGGAGCCUCGGUG GCCAUGCUUCUUGCCCCUUGGGCCUCCCCCCAGCCCCUCCUCCCCUUCCUGCACCCGUACC CCCGUGGUCUUUGAAUAAAGUCUGAGUGGGCGGCUCUAGA EPO DNA SEQ ID NO: 5 GGGAAATAAGAGAGAAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGGAGTGCAC GAGTGTCCCGCGTGGTTGTGGTTGCTGCTGTCGCTCTTGAGCCTCCCACTGGGACTGCCTGTG CTGGGGGCACCACCCAGATTGATCTGCGACTCACGGGTACTTGAGAGGTACCTTCTTGAAGCCA AAGAAGCCGAAAACATCACAACCGGATGCGCCGAGCACTGCTCCCTCAATGAGAACATTACTGT ACCGGATACAAAGGTCAATTTCTATGCATGGAAGAGAATGGAAGTAGGACAGCAGGCCGTCGAA GTGTGGCAGGGGCTCGCGCTTTTGTCGGAGGCGGTGTTGCGGGGTCAGGCCCTCCTCGTCAA CTCATCACAGCCGTGGGAGCCCCTCCAACTTCATGTCGATAAAGCGGTGTCGGGGCTCCGCAG CTTGACGACGTTGCTTCGGGCTCTGGGCGCACAAAAGGAGGCTATTTCGCCGCCTGACGCGGC CTCCGCGGCACCCCTCCGAACGATCACCGCGGACACGTTTAGGAAGCTTTTTAGAGTGTACAGC AATTTCCTCCGCGGAAAGCTGAAATTGTATACTGGTGAAGCGTGTAGGACAGGGGATCGCTGAT AATAGGCTGGAGCCTCGGTGGCCATGCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCC CCTTCCTGCACCCGTACCCCCGTGGTCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA EPO mRNA SEQ ID NO: 6 GGGAAAUAAGAGAGAAAAGAAGAGUAAGAAGAAAUAUAAGAGCCACCAUGGGAGUGCA CGAGUGUCCCGCGUGGUUGUGGUUGCUGCUGUCGCUCUUGAGCCUCCCACUGGGACUGCCU GUGCUGGGGGCACCACCCAGAUUGAUCUGCGACUCACGGGUACUUGAGAGGUACCUUCUUG AAGCCAAAGAAGCCGAAAACAUCACAACCGGAUGCGCCGAGCACUGCUCCCUCAAUGAGAACA UUACUGUACCGGAUACAAAGGUCAAUUUCUAUGCAUGGAAGAGAAUGGAAGUAGGACAGCAG GCCGUCGAAGUGUGGCAGGGGCUCGCGCUUUUGUCGGAGGCGGUGUUGCGGGGUCAGGCC CUCCUCGUCAACUCAUCACAGCCGUGGGAGCCCCUCCAACUUCAUGUCGAUAAAGCGGUGUC GGGGCUCCGCAGCUUGACGACGUUGCUUCGGGCUCUGGGCGCACAAAAGGAGGCUAUUUCG CCGCCUGACGCGGCCUCCGCGGCACCCCUCCGAACGAUCACCGCGGACACGUUUAGGAAGC UUUUUAGAGUGUACAGCAAUUUCCUCCGCGGAAAGCUGAAAUUGUAUACUGGUGAAGCGUGU AGGACAGGGGAUCGCUGAUAAUAGGCUGGAGCCUCGGUGGCCAUGCUUCUUGCCCCUUGGG CCUCCCCCCAGCCCCUCCUCCCCUUCCUGCACCCGUACCCCCGUGGUCUUUGAAUAAAGUCU GAGUGGGCGGCUCUAGA mCherry DNA SEQ ID NO: 7 TCAAGCTTTTGGACCCTCGTACAGAAGCTAATACGACTCACTATAGGGAAATAAGAGAG AAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGTATCCAAGGGGGAGGAGGACAACATGG CGATCATCAAGGAGTTCATGCGATTCAAGGTGCACATGGAAGGTTCGGTCAACGGACACGAATT TGAAATCGAAGGAGAGGGTGAAGGAAGGCCCTATGAAGGGACACAGACCGCGAAACTCAAGGT CACGAAAGGGGGACCACTTCCTTTCGCCTGGGACATTCTTTCGCCCCAGTTTATGTACGGGTCC AAAGCATATGTGAAGCATCCCGCCGATATTCCTGACTATCTGAAACTCAGCTTTCCCGAGGGATT CAAGTGGGAGCGGGTCATGAACTTTGAGGACGGGGGTGTAGTCACCGTAACCCAAGACTCAAG CCTCCAAGACGGCGAGTTCATCTACAAGGTCAAACTGCGGGGGACTAACTTTCCGTCGGATGG GCCGGTGATGCAGAAGAAAACGATGGGATGGGAAGCGTCATCGGAGAGGATGTACCCAGAAGA TGGTGCATTGAAGGGGGAGATCAAGCAGAGACTGAAGTTGAAAGATGGGGGACATTATGATGC CGAGGTGAAAACGACATACAAAGCGAAAAAGCCGGTGCAGCTTCCCGGAGCGTATAATGTGAAT ATCAAGTTGGATATTACTTCACACAATGAGGACTACACAATTGTCGAACAGTACGAACGCGCTGA GGGTAGACACTCGACGGGAGGCATGGACGAGTTGTACAAATGATAATAGGCTGGAGCCTCGGT GGCCATGCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCC CCGTGGTCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA nanoluc DNA SEQ ID NO: 8 TCAAGCTTTTGGACCCTCGTACAGAAGCTAATACGACTCACTATAGGGAAATAAGAGAG AAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGTTTTTACCCTCGAAGATTTTGTCGGAGA TTGGAGACAGACTGCCGGATACAACCTTGACCAAGTCCTCGAGCAAGGCGGTGTGTCGTCACTC TTCCAAAACCTGGGTGTGTCCGTGACTCCCATCCAGCGCATCGTCCTGAGCGGCGAAAATGGGT TGAAGATCGACATCCATGTGATCATTCCATACGAGGGACTGTCCGGGGACCAGATGGGTCAGAT CGAAAAGATTTTCAAAGTGGTGTACCCGGTCGACGATCATCACTTCAAGGTGATCCTGCACTAC GGAACGCTGGTGATCGATGGGGTGACCCCGAACATGATTGACTATTTCGGACGGCCTTACGAG GGCATCGCAGTGTTCGACGGAAAGAAGATCACCGTGACCGGCACTCTGTGGAATGGAAACAAA ATCATCGACGAACGCCTGATCAATCCGGATGGCTCGCTGTTGTTCCGGGTGACCATTAACGGAG TCACTGGATGGAGGCTCTGCGAGCGCATCCTTGCGTGATAATAGGCTGGAGCCTCGGTGGCCA TGCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCCCCGTG GTCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA Human EPO DNA SEQ ID NO: 9 TCAAGCTTTTGGACCCTCGTACAGAAGCTAATACGACTCACTATAGGGAAATAAGAGAG AAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGGAGTGCACGAGTGTCCCGCGTGGTTGT GGTTGCTGCTGTCGCTCTTGAGCCTCCCACTGGGACTGCCTGTGCTGGGGGCACCACCCAGAT TGATCTGCGACTCACGGGTACTTGAGAGGTACCTTCTTGAAGCCAAAGAAGCCGAAAACATCAC AACCGGATGCGCCGAGCACTGCTCCCTCAATGAGAACATTACTGTACCGGATACAAAGGTCAAT TTCTATGCATGGAAGAGAATGGAAGTAGGACAGCAGGCCGTCGAAGTGTGGCAGGGGCTCGCG CTTTTGTCGGAGGCGGTGTTGCGGGGTCAGGCCCTCCTCGTCAACTCATCACAGCCGTGGGAG CCCCTCCAACTTCATGTCGATAAAGCGGTGTCGGGGCTCCGCAGCTTGACGACGTTGCTTCGG GCTCTGGGCGCACAAAAGGAGGCTATTTCGCCGCCTGACGCGGCCTCCGCGGCACCCCTCCG AACGATCACCGCGGACACGTTTAGGAAGCTTTTTAGAGTGTACAGCAATTTCCTCCGCGGAAAG CTGAAATTGTATACTGGTGAAGCGTGTAGGACAGGGGATCGCTGATAATAGGCTGGAGCCTCGG TGGCCATGCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCC CCGTGGTCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA Mouse EPO DNA SEQ ID NO: 10 TCAAGCTTTTGGACCCTCGTACAGAAGCTAATACGACTCACTATAGGGAAATAAGAGAG AAAAGAAGAGTAAGAAGAAATATAAGAGCCACCATGGGGGTGCCCGAACGTCCCACCCTGCTG CTTTTACTCTCCTTGCTACTGATTCCTCTGGGCCTCCCAGTCCTCTGTGCTCCCCCACGCCTCAT CTGCGACAGTCGAGTTCTGGAGAGGTACATCTTAGAGGCCAAGGAGGCAGAAAATGTCACGAT GGGTTGTGCAGAAGGTCCCAGACTGAGTGAAAATATTACAGTCCCAGATACCAAAGTCAACTTCT ATGCTTGGAAAAGAATGGAGGTGGAAGAACAGGCCATAGAAGTTTGGCAAGGCCTGTCCCTGCT CTCAGAAGCCATCCTGCAGGCCCAGGCCCTGCTAGCCAATTCCTCCCAGCCACCAGAGACCCT TCAGCTTCATATAGACAAAGCCATCAGTGGTCTACGTAGCCTCACTTCACTGCTTCGGGTACTGG GAGCTCAGAAGGAATTGATGTCGCCTCCAGATACCACCCCACCTGCTCCACTCCGAACACTCAC AGTGGATACTTTCTGCAAGCTCTTCCGGGTCTACGCCAACTTCCTCCGGGGGAAACTGAAGCTG TACACGGGAGAGGTCTGCAGGAGAGGGGACAGGTGATAATAGGCTGGAGCCTCGGTGGCCAT GCTTCTTGCCCCTTGGGCCTCCCCCCAGCCCCTCCTCCCCTTCCTGCACCCGTACCCCCGTGG TCTTTGAATAAAGTCTGAGTGGGCGGCTCTAGA

Example 83. In Vitro Transcription Yields

Yields were targeted to be 0.2 mg. See Example 2 for protocol.

TABLE 23 In vitro Transcription Yields. Luc EPO GCSF In Vitro In Vitro In Vitro Transcription Transcription Transcription Compound # Chemical Alterations yield(mg) yield(mg) yield(mg) 00902015001 PseudoU-alpha-thio-TP 0.6479 0.8632 0.5522 00902015002 1-Methyl-pseudo-U-alpha-thio-TP 0.6011 0.7679 0.6582 03601015003 1-Ethyl-pseudo-UTP 0.6304 1.095 0.5464 03601015004 1-Propyl-pseudo-UTP 0.4971 0.9920 0.5976 03601015005 1-(2,2,2-Trifluoroethyl)pseudo-UTP 0.4388 0.3379 0.2332 00901015006 2-Thio-pseudo-UTP 0.6123 1.081 0.5207 00901013002 5-Trifluoromethyl-UTP 0.3662 0.3830 0.5102 00901014003 5-Trifluoromethyl-CTP 0.5097 0.7886 0.7710 00901015187 3-Methyl-pseudo-UTP 0.0152 0.0125 0.0120 00901013004 5-Methyl-2-thio-UTP 0.7580 0.8717 0.4682 00901014004 N4-methyl CTP 1.124 1.154 0.9028 00901014005 5-Hydroxymethyl-CTP 0.4073 0.7778 0.6391 00901014006 3-Methyl-CTP 0.0068 0.0060 0.0141 00901013004 UTP-5-oxyacetic acid Me ester 0.6348 0.3859 0.3836 00901013005 5-Methoxy carbonyl methyl-UTP 0.8825 0.6432 0.6475 00901013006 5-Methylaminomethyl-UTP 0.2914 0.3060 0.3494 00901013007 5-methoxy-UTP 0.3817 0.1727 0.1546 00901014007 N4—Ac-CTP 0.4394 0.4351 0.3658 00901012008 N1—Me-GTP 0.0059 0.0032 0.0050 03601011002 2-Amino-ATP 0.1215 0.2612 0.1567 00901011003 8-Aza-ATP 0.0262 0.0055 0.03 00901012003 Xanthosine 0.0054 0.0032 0.0041 03601014008 5-Bromo-CTP 0.5161 0.3454 0.3685 03601014009 5-Aminoallyl-CTP 0.3471 0.4943 0.4567 03601012004 2-Aminopurine-riboside TP 0.0690 0.0125 0.2919 00901013008 2-Thio-UTP 0.2792 0.3630 0.3359 00901013009 5-Bromo-UTP 0.3352 0.2617 0.3566 00901014010 2-Thio-CTP 0.0073 0.0061 0.0076 00902014001 Alpha-thio-CTP 0.3352 0.2669 0.2650 00901013010 5-Aminoallyl-UTP 0.3513 0.3732 0.4206 00902013001 Alpha-thio-UTP 0.3510 0.2666 0.2605 00901013011 4-Thio-UTP 0.1625 0.0416 0.0759 00901014003/ 5-Trifluoromethyl-CTP/ 0.3405 0.4471 0.2966 00901015002 1-Methyl-pseudo-UTP 00901014005/ 5-Hydroxymethyl-CTP/ 0.3270 0.3149 0.3705 00901015002 1-Methyl-pseudo-UTP 03601014008/ 5-Bromo-CTP/ 0.2594 0.3073 0.3958 00901015002 1-Methyl-pseudo-UTP 00901014003/ 5-Trifluoromethyl-CTP/ 0.3316 0.4486 0.4197 00901015001 Pseudo-UTP 03601014008/ 5-Bromo-CTP/Pseudo-UTP 0.3265 0.4879 0.2982 00901015001 00901014003/ 75% 5-Trifluoromethyl-CTP + 0.3316 0.4008 0.4777 00901015002 25% CTP/1-Methyl-pseudo-UTP 00901014003/ 50% 5-Trifluoromethyl-CTP + 0.3884 0.3990 0.4130 00901015002 50% CTP/1-Methyl-pseudo-UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 0.3157 0.3913 0.5430 00901015002 75% CTP/1-Methyl-pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% CTP/ 0.2897 0.4181 0.3894 00901015002 1-Methyl-pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/ 0.3258 0.3930 0.4911 00901015002 1-Methyl-pseudo-UTP 00901014005/ 50% 5-Hydroxymethyl-CTP + 0.4535 0.4546 0.4414 00901015002 50% CTP/1-Methyl-pseudo-UTP 00901014007/ N4Ac-CTP/1-Methyl-pseudo-UTP 0.3213 0.2257 0.3696 00901015001 00901014007/ N4Ac-CTP/5-Methoxy-UTP 0.2747 0.3903 0.2972 00901013007 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.19 0.17 0.25 00901015002 1-Methyl-pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.22 0.19 0.44 00901015002 1-Methyl-pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.24 0.25 0.25 00901015002 1-Methyl-pseudo-UTP 00901014002/ 12.5% 5-Methyl-CTP + 87.5% 0.26 0.3 0.27 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.29 0.19 0.36 00901015001 Pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.22 0.15 0.29 00901015001 Pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.28 0.19 0.25 00901015001 Pseudo-UTP 00901014035/ 5-Iodo-CTP/1-Methyl-pseudo-UTP .09 0.07 0.1 00901015002 00901014035/ 75% 5-Iodo-CTP + 25% CTP/ 0.15 0.13 0.16 00901015002 1-Methyl-pseudo-UTP 00901014035/ 50% 5-Iodo-CTP + 50% CTP/ 0.21 0.15 0.19 00901015002 1-Methyl-pseudo-UTP 00901014035/ 25% 5-Iodo-CTP + 75% CTP/ 0.21 0.18 0.35 00901015002 1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/ 00901015002 1-Methyl-pseudo-UTP 0.11 N/A 03601014008/ 75% 5-Bromo-CTP + 25% CTP/ 0.17 N/A 00901015001 Pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% CTP/ 0.14 N/A 00901015001 Pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/ 0.11 N/A 00901015001 Pseudo-UTP 00901014003/ 5-Trifluoro-methyl-CTP/ 0.06 N/A 00901013007 5-Methoxy-UTP 12201014040/ 5-Hydroxy-methyl-CTP/ 0.05 N/A 00901013007 5-Methoxy-UTP 03601014008/ 5-Bromo-CTP/5-Methoxy-UTP 0.06 N/A 00901013007 00901014002/ 5-Methyl-CTP/75% 2-Thio-UTP + 0.12 0.17 00901013008 25% UTP 00901014002/ 5-Methyl-CTP/25% 2-Thio-UTP + 0.15 0.15 00901013008 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.11 0.18 00901013008 2-Thio-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.11 0.18 00901013008 2-Thio-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.09 0.13 00901013008 2-Thio-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.18 0.21 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.15 0.18 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.17 0.14 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.14 0.21 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.16 0.14 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.14 0.16 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.12 0.19 00901013008 25% 2-Thio-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.16 0.19 00901013008 25% 2-Thio-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.13 0.19 00901013008 25% 2-Thio-UTP + 75% UTP 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 0.19 0.23 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 0.21 0.23 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 0.21 0.24 03601014008/ 75% 5-Bromo-CTP + 25% CTP/ 0.11 N/A 00901015002 1-Methyl-pseudo-UTP

TABLE 24 In vitro Transcription Yields. mCherry nanoLuc In Vitro In Vitro Transcription Transcription Compound # Chemical Alterations yield(mg) yield(mg) 00901014005/ 5-Hydroxymethyl-CTP/Pseudo-UTP 0.13 0.15 00901015001 00901014035/ 5-Iodo-CTP/Pseudo-UTP 0.01 0.11 00901015001 00901014007/ N4—Ac-CTP/Pseudo-UTP 0.12 0.22 00901015001 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 0.07 0.04 00901013007 07101015011 2-Pyridinone-TP 0 0 07101015012 6-Fluoro-2-pyridinone-TP 0 0 07101015017 3-Methyl-2-pyridinone-TP 0 0 5′-Amino-UTP 0 0 00901014002/ 5-Methyl-CTP/5′-Amino-UTP 0 0 07101015013 6-Methyl-2-pyridinone-TP 0 0 00901014002/ 5-Methyl-CTP/2-Pyridinone-TP 0 0 07101015011 00901014002/ 5-Methyl-CTP/6-Fluoro-2-pyridinone-TP 0 0 07101015012 00901014002/ 5-Methyl-CTP/3-Methyl-2-pyridinone-TP 0 0 07101015017 00901014002/ 5-Methyl-CTP/6-Methyl-2-pyridinone-TP 0 0 07101015013 03601015032 1-Benzyl-pseudo-UTP 0 0 00901014002/ 5-Methyl-CTP/1-Ethyl-pseudo-UTP 0.2 0.2 03601015003 00901014002/ 5-Methyl-CTP/1-Propyl-pseudo-UTP 0.2 0.12 03601015004 00901014002/ 5-Methyl-CTP/1-Benzyl-pseudo-UTP 0 0 03601015032 00901014002/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 0.23 0.27 00901013007 25% UTP 00901014002/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 0.27 0.22 00901013007 50% UTP 00901014002/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 0.2 0.24 00901013007 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0.2 0.18 00901013007 5-Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 0.35 0.36 00901013007 5-Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 0.23 0.16 00901013007 5-Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/75% 0.21 0.23 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/75% 0.25 0.25 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/75% 0.25 0.22 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/50% 0.27 0.18 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/50% 0.25 0.24 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/50% 0.2 0.3 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/25% 0.32 0.23 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/25% 0.23 0.19 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/25% 0.22 0.18 00901013007 5-Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 0.22 0.25 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 0.24 0.2 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 0.18 0.24 00901013007 CTP/5-Methoxy-UTP (No cap) 0.18 0.14 00901013007 CTP/5-Methoxy-UTP (cap 0) 0.17 0.17 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP (No cap) 0.09 0.1 00901013007 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP (cap 0) 0.1 0.1 00901013007 CTP/UTP (No cap) 0.17 0.18 CTP/UTP (cap 0) 0.2 0.22 00901014002/ 5-Methyl-CTP/Pseudo-UTP (No cap) 0.17 0.21 00901015001 00901014002/ 5-Methyl-CTP/Pseudo-UTP (cap 0) 0.13 0.22 00901015001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 0.13 0.17 00901015002 (No cap) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 0.14 0.18 00901015002 (cap 0) 00901015002 CTP/1-Methyl-pseudo-UTP (No cap) 0.17 0.28 00901015002 CTP/1-Methyl-pseudo-UTP (cap 0) 0.15 0.14 CTP/UTP/ATP/GTP (cap ARCA) 0.09 0.06 00901014002/ 5-Methyl-CTP/Pseudo-UTP 0.07 0.07 00901015001 (cap ARCA) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 0.09 0.14 00901015002 (cap ARCA) 00901015002 CTP/1-Methyl-pseudo-UTP (cap ARCA) 0.09 0.14 00902011001 Alpha-Thio-ATP 0 0 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 0.13 0.1 00901015001/ Alpha-Thio-ATP 00902011001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 0 0 00901015002/ Alpha-Thio-ATP 00902011001 00901015002/ 1-Methyl-pseudo-UTP/Alpha-Thio-ATP 0 0 00902011001 00901013007/ 5-Methoxy-UTP/Alpha-Thio-ATP 0 0 00902011001 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 0 0 00901013007/ Alpha-Thio-ATP 00902011001 00902012001 Alpha-Thio-GTP 0.19 0.18 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 0.13 0.17 00901015001/ Alpha-Thio-GTP 00902012001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 0.04 0.11 00901015002/ Alpha-Thio-GTP 00902012001 00901015002/ 1-Methyl-pseudo-UTP/Alpha-Thio-GTP 0.14 0.06 00902012001 00901013007/ 5-Methoxy-UTP/Alpha-Thio-GTP 0.07 0.11 00902012001 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 0.07 0.11 00901013007/ Alpha-Thio-GTP 00902012001 00901011006 N6—Me-ATP 0.22 0.2 00901014002/ 5-Methyl-CTP/Pseudo-UTP/N6—Me-ATP 0.15 0.14 00901015001/ 00901011006 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 0.06 0.06 00901015002/ N6—Me-ATP 00901011006 00901015002/ 1-Methyl-pseudo-UTP/N6—Me-ATP 0.18 0.07 00901011006 00901013007/ 5-Methoxy-UTP/N6—Me-ATP 0.19 0.14 00901011006 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 0.3 0.14 00901013007/ N6—Me-ATP 00901011006 03601014039 5-Ethyl-CTP 0.3 0.26 03601014039/ 5-Ethyl-CTP/1-Methyl-pseudo-UTP 0.26 0.23 00901015002 03601014039/ 5-Ethyl-CTP/5-Methoxy-UTP 0.24 0.23 00901013007 03601014030 5-Methoxy-CTP 0.21 0.17 03601014030/ 5-Methoxy-CTP/1-Methyl-pseudo-UTP 0.17 0.17 00901015002 03601014030/ 5-Methoxy-CTP/5-Methoxy-UTP 0.16 0.17 00901013007 03601014011 5-Ethynyl-CTP 0.26 0.23 03601014011/ 5-Ethynyl-CTP/1-Methyl-pseudo-UTP 0.19 0.24 00901015002 03601014011/ 5-Ethynyl-CTP/5-Methoxy-UTP 0.14 0.16 00901013007 03601014011/ 5-Ethynyl-CTP/Pseudo-UTP 0.12 0.09 00901015001 03601014011/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 0.33 0.35 00901013007/ 25% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 0.23 0.49 00901013007/ 50% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 0.3 0.29 00901013007/ 75% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 75% 5-Methyl-CTP + 25% CTP/75% 0.12 0.19 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/75% 0.23 0.32 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/75% 0.1 0.19 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/50% 0.24 0.27 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/50% 0.28 0.57 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/50% 0.45 0.44 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/25% 0.29 0.38 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/25% 0.21 0.27 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/25% 0.21 0.52 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/75% 5-Methoxy-UTP + 25% 0.22 0.25 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/50% 5-Methoxy-UTP + 50% 0.35 0.34 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/25% 5-Methoxy-UTP + 75% 0.32 0.29 00901015002 1-Methyl-pseudo-UTP 00901014004/ N4-Methyl-CTP/1-Methyl-pseudo-UTP 0.27 0.1 00901015002 00902014001/ Alpha-thio-CTP/1-Methyl-pseudo-UTP 0 0.06 00901015002 5-Methyl-5, 6-dihydro-UTP 0.02 0 00901015002/ 1-Methyl-pseudo-UTP/2% 0.13 0.07 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 0.22 0.27 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 0.17 0.26 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/25% 0.22 0.25 00902012001 Alpha-Thio-GTP + 75% GTP 00901015002/ 1-Methyl-pseudo-UTP/50% 0.24 0.26 00902012001 Alpha-Thio-GTP + 50% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 0.18 0.17 00902011001 Alpha-Thio-ATP + 98% ATP 00901015002/ 1-Methyl-pseudo-UTP/5% 0.20 0.15 00902011001 Alpha-Thio-ATP + 95% ATP 00901015002/ 1-Methyl-pseudo-UTP/10% 0.19 0.22 00902011001 Alpha-Thio-ATP + 90% ATP 00901015002/ 1-Methyl-pseudo-UTP/25% 0.03 0.04 00902011001 Alpha-Thio-ATP + 75% ATP 00901015002/ 1-Methyl-pseudo-UTP/50% 0.11 0.12 00902011001 Alpha-Thio-ATP + 50% ATP 00901015002 75% 1-Methyl-pseudo-UTP + 25% UTP 0.12 0.23 00901015002 50% 1-Methyl-pseudo-UTP + 50% UTP 0.18 0.28 00901015001 75% Pseudo-UTP + 25% UTP 0.19 0.2 00901015001 50% Pseudo-UTP + 50% UTP 0.19 2.4 00901015001 25% Pseudo-UTP + 75% UTP 0.18 2.3 03601013014 75% 5-Methyl-UTP + 25% UTP 0.19 2.1 03601013014 50% 5-Methyl-UTP + 50% UTP 0.24 0.39 03601013014 25% 5-Methyl-UTP + 75% UTP 0.19 0.2 00901013003 75% 5-Methyl-2-thio-UTP + 25% UTP 0.22 0.49 00901013003 50% 5-Methyl-2-thio-UTP + 50% UTP 2 0.27 00901013003 25% 5-Methyl-2-thio-UTP + 75% UTP 1.6 0.22 00901013011 75% 4-Thio-UTP + 25% UTP 0.19 0.16 00901013011 50% 4-Thio-UTP + 50% UTP 0.23 0.21 00901013011 25% 4-Thio-UTP + 75% UTP 0.26 0.19 00901013009 75% 5-Methoxy-carbonylmethyl-UTP + 0.28 0.15 25% UTP 00901013009 50% 5-Methoxy-carbonylmethyl-UTP + 0.27 0.17 50% UTP 00901013009 25% 5-Methoxy-carbonylmethyl-UTP + 0.24 0.12 75% UTP 03601014011 75% 5-Methyl-CTP + 25% CTP 0.19 0.28 03601014011 50% 5-Methyl-CTP + 50% CTP 0.21 0.15 03601014011 25% 5-Methyl-CTP + 75% CTP 0.2 0.18 03601014011/ 75% 5-Methyl-CTP + 25% CTP/ 0.19 0.19 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/ 0.15 0.14 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/ 0.09 0.07 00901015002 1-Methyl-pseudo-UTP 00901011045 8-Me-ATP 0.01 0.01 00901015002/ 1-Methyl-pseudo-UTP/8-Me-ATP 0.01 0.01 00901011045 00901015002/ 1-Methyl-pseudo-UTP/2% 0.07 0.13 00902011001/ Alpha-Thio-ATP + 98% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 0.14 0.13 00902011001/ Alpha-Thio-ATP + 95% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 0.12 0.10 00902011001/ Alpha-Thio-ATP + 98% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 0.11 0.08 00902011001/ Alpha-Thio-ATP + 95% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 0.12 0.08 00902011001/ Alpha-Thio-ATP + 90% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 0.11 0.08 00902011001/ Alpha-Thio-ATP + 98% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 0.09 0.07 00902011001/ Alpha-Thio-ATP + 90% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 0.11 0.06 00902011001/ Alpha-Thio-ATP + 95% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 0.10 0.08 00902011001/ Alpha-Thio-ATP + 90% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901014041 5-Fluoro-CTP 0.30 0.21 00901014041/ 5-Fluoro-CTP/1-Methyl-pseudo-UTP 0.21 0.20 00901015002 00901014041/ 5-Fluoro-CTP/5-Methoxy-UTP 0.20 0.20 00901013007 03601014021 5-Phenyl-CTP 0.13 0.07 03601014021/ 5-Phenyl-CTP/1-Methyl-pseudo-UTP 0.07 0.04 00901015002 03601014021/ 5-Phenyl-CTP/5-Methoxy-UTP 0.06 0.07 00901013007 03601014013 N4-Bz-CTP 0.16 0.12 03601014013/ N4-Bz-CTP/1-Methyl-pseudo-UTP 0.11 0.11 00901015002 03601014013/ N4-Bz-CTP/5-Methoxy-UTP 0.02 0.02 00901013007 00901011044 N6-Isopentenyl-ATP 0.04 0.04 00901015002/ 1-Methyl-pseudo-UTP/N6-Isopentenyl-ATP 0.01 0.02 00901011044 00901013007/ 5-Methoxy-UTP/N6-Isopentenyl-ATP 0.02 0.02 00901011044 03601013036 5-Carbamoyl-methyl-UTP 0.27 0.16 03601013036 75% 5-Carbamoyl-methyl-UTP + 0.19 0.18 25% UTP 03601013036 50% 5-Carbamoyl-methyl-UTP + 0.26 0.13 50% UTP 03601013036 25% 5-Carbamoyl-methyl-UTP + 0.18 0.11 75% UTP 00901013054 75% 5-Hydroxy-UTP + 25% UTP 0.18 0.17 00901013054 50% 5-Hydroxy-UTP + 50% UTP 0.18 0.20 00901013054 25% 5-Hydroxy-UTP + 75% UTP 0.21 0.23 00901014007/ 25% N4—Ac-CTP + 75% CTP/25% 0.21 0.30 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/25% 0.21 0.30 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 25% N4—Ac-CTP + 75% CTP/75% 0.20 0.25 00901013007 5-Methoxy-UTP + 25% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/75% 0.15 0.13 00901013007 5-Methoxy-UTP + 25% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% CTP/ 0.33 0.25 00901013007 25% 5-Methoxy-UTP + 75% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% CTP/ 0.28 0.27 00901013007 25% 5-Methoxy-UTP + 75% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% CTP/ 0.27 0.37 00901013007 75% 5-Methoxy-UTP + 25% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% CTP/ 0.37 0.33 00901013007 75% 5-Methoxy-UTP + 25% UTP 00901014004/ N4-Methyl-CTP/5-Methoxy-UTP 0.39 0.27 00901013007 00901014004/ 25% N4-Methyl-CTP + 75% CTP/25% 0.42 0.35 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/25% 0.44 0.24 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 25% N4-Methyl-CTP + 75% CTP/75% 0.41 0.23 00901013007 5-Methoxy-UTP + 25% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/75% 0.34 0.30 00901013007 5-Methoxy-UTP + 25% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% CTP/ 0.34 0.13 00901013007 25% 5-Methoxy-UTP + 75% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% CTP/ 0.42 0.15 00901013007 25% 5-Methoxy-UTP + 75% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% CTP/ 0.53 0.25 00901013007 75% 5-Methoxy-UTP + 25% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% CTP/ 0.28 0.27 00901013007 75% 5-Methoxy-UTP + 25% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/25% 0.29 0.26 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/25% 0.23 0.19 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/75% 0.18 0.15 00901013007 5-Methoxy-UTP + 25% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/75% 0.18 0.14 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 0.11 0.12 00901013007 00901014035/ 25% 5-Iodo-CTP + 75% CTP/25% 0.20 0.18 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/25% 0.17 0.08 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 25% 5-Iodo-CTP + 75% CTP/75% 0.19 0.16 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/75% 0.14 0.11 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/25% 0.30 0.18 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/25% 0.27 0.19 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/75% 0.21 0.19 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/75% 0.17 0.13 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/25% 0.18 0.21 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/25% 0.21 0.17 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/75% 0.14 0.15 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/75% 0.09 0.12 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/25% 0.27 0.13 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/25% 0.24 0.12 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/75% 0.23 0.07 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/75% 0.14 0.19 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ Pseudo-iso-CTP/5-Methoxy-UTP 0.2 0.15 00901013007 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/25% 0.18 0.16 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/25% 0.18 0.15 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/75% 0.22 0.16 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/75% 0.21 0.13 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 5-Formyl-CTP/5-Methoxy-UTP 0.17 0.16 00901013007 00901014036/ 25% 5-Formyl-CTP + 75% CTP/25% 0.16 0.11 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/25% 0.19 0.15 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 25% 5-Formyl-CTP + 75% CTP/75% 0.2 0.13 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/75% 0.2 0.12 00901013007 5-Methoxy-UTP + 25% UTP 03601014009/ 5-Aminoallyl-CTP/5-Methoxy-UTP 0.11 0.07 00901013007 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/25% 0.26 0.19 00901013007 5-Methoxy-UTP + 75% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/25% 0.18 0.15 00901013007 5-Methoxy-UTP + 75% UTP 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/75% 0.19 0.16 00901013007 5-Methoxy-UTP + 25% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/75% 0.18 0.15 00901013007 5-Methoxy-UTP + 25% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/25% 0.29 0.31 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/25% 0.23 0.23 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/75% 0.18 0.22 00901013007 5-Methoxy-UTP + 25% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/75% 0.18 0.30 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/25% 0.20 0.41 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/25% 0.17 0.22 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/75% 0.05 0.05 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/75% 0.14 0.10 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/25% 0.30 0.30 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/25% 0.27 0.19 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/75% 0.21 0.19 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/75% 0.17 0.13 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 5-Carboxy-CTP/5-Methoxy-UTP 0.03 0.05 00901013007 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/25% 0.21 0.17 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/25% 0.21 0.17 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/75% 0.14 0.15 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/75% 0.09 0.12 00901013007 5-Methoxy-UTP + 25% UTP 00901013007/ 5-Methoxy-UTP/O6—Me-GTP 0 0 00901012007 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.8 0.14 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0 0 00901012007 O6—Me-GTP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0 0 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0 0 00901012007 O6—Me-GTP + 25% GTP 00901013007/ 5-Methoxy-UTP/7-Deaza-GTP 0 0 00901012035 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0 0 00901012035 7-Deaza-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0 0 00901012035 7-Deaza-GTP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0 0 00901012035 7-Deaza-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0 0 00901012035 7-Deaza-GTP + 25% GTP 00901013007/ 5-Methoxy-UTP/2-Amino-6-Cl-purine-TP 0 0 00901012010 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.16 0.32 00901012010 2-Amino-6-Cl-purine-TP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0 0 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0 0 00901012010 2-Amino-6-Cl-purine-TP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0 0 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 5-Methoxy-UTP/N6—Me-2-amino purine-TP 0 0 00901011004 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.13 0.08 00901011004 N6—Me-2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0 0 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0 0 00901011004 N6—Me-2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0 0 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 5-Methoxy-UTP/2-amino purine-TP 0.01 0.10 00901012004 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.28 0.26 00901012004 2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0.14 0.19 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0.08 0.15 00901012004 2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0.23 0.14 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 5-Methoxy-UTP/8-Azido-ATP 0.01 0.12 00901011005 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.12 0.18 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0.09 0.08 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0.17 0.16 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0.06 0.11 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 5-Methoxy-UTP/N7—Me-GTP 0.02 0.14 00901012012 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 0.21 0.18 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 0.12 0.19 00901012012 N7—Me-GTP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 0.10 0.19 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 0.13 0.13 00901012012 N7—Me-GTP + 25% GTP 00901013042 5-Isopentenyl-aminomethyl-UTP 0.01 0.05 00901013042 75% 5-Isopentenyl-aminomethyl-UTP + 0.21 0.21 25% UTP 00901013042 50% 5-Isopentenyl-aminomethyl-UTP + 0.22 0.17 50% UTP 00901013042 25% 5-Isopentenyl-aminomethyl-UTP + 0.20 0.15 75% UTP 00901014002/ 5-Me-CTP/5-Isopentenyl-aminomethyl-UTP 0.01 0.12 00901013042

TABLE 25 In vitro Transcription Yields. mEPO hEPO In Vitro In Vitro Transcrip- Transcrip- tion tion Compound # Chemical Alterations yield(mg) yield(mg) 00901013007 5-Methoxy-UTP 0.13 0.33 00901014002/ 5-Me-CTP/5-Methoxy-UTP 0.22 0.22 00901013007 00901014002/ 5-Methyl-CTP/75% 0.26 0.17 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 5-Methyl-CTP/50% 0.27 0.24 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 5-Methyl-CTP/25% 0.15 0.25 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + 0.15 0.25 00901013007 25% CTP/5-Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 0.21 0.29 00901013007 50% CTP/5-Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 0.15 0.23 00901013007 75% CTP/5-Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 0.2 0.02 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 0.24 0.02 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 0.4 0.11 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 0.34 0.11 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 0.14 0.19 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 0.19 0.23 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 0.13 0.09 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 0.13 0.1 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 0.13 0.2 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 0.15 0.2 25% UTP 00901013007 CTP/50% 5-Methoxy-UTP + 0.19 0.3 50% UTP 00901013007 CTP/25% 5-Methoxy-UTP + 0.16 0.24 75% UTP

Example 84. In Vitro Translation Screen

The in vitro translation assay was done with the Rabbit Reticulocyte Lysate (nuclease-treated) kit (Promega, Madison, Wis.; Cat. #L4960) according to the manufacturer's instructions. The reaction buffer was a mixture of equal amounts of the amino acid stock solutions devoid of Leucine or Methionine provided in the kit. This resulted in a reaction mix containing sufficient amounts of both amino acids to allow effective in vitro translation.

The modRNAs of firefly Luciferase, human GCSF and human EPO, harboring chemical alterations on either the bases or the ribose units, were diluted in sterile nuclease-free water to a final concentration of 250 ng in 2.5 ul (Stock 100 ng/μl). The modRNA (250 ng) was added to the mixture of freshly prepared Rabbit Reticulocyte Lysate and reaction buffer. The in vitro translation reaction was done in a standard 0.2 ml polypropylene 96-well PCR plates (USA Scientific, Ocala, Fla.; Cat. #1402-9596) at 30° C. in a Thermocycler (MJ Research PCT-100, Watertown, Mass.).

After 45 min incubation, the reaction was stopped by placing the plate on ice. Aliquots of the in vitro translation reaction containing luciferase modRNA were transferred to white opaque polystyrene 96-well plates (Corning, Manassas, Va.; Cat. # CLS3912) and combined with 100 ul complete luciferase assay solution (Promega, Madison, Wis.). The volumes of the in vitro translation reactions were adjusted or diluted until no more than 2 million relative light units per well were detected for the strongest signal producing samples. The background signal of the plates without reagent was about 200 relative light units per well. The plate reader was a BioTek Synergy H1 (BioTek, Winooski, Vt.).

Aliquots of the in vitro translation reaction containing human GCSF modRNA or human EPO mRNA were transferred and analyzed with a human GCSF-specific or EPO ELISA kit (both from R&D Systems, Minneapolis, Minn.; Cat. #s SCS50, DEP00 respectively) according to the manufacturer instructions. All samples were diluted until the determined values were within the linear range of the human GCSF or EPO ELISA standard curve.

TABLE 26 In vitro Translation Data. Luc Luc Epo Epo GCSF GSCF Expression Std Expression Std Expression Std Compound # Chemical Alterations (RLUs) Dev (pg/ml) Dev (pg/ml) Dev 00902015001 PseudoU-alpha-thio-TP 5221 480 2669 492 7763 538 00902015002 1-Methyl-pseudo-U-alpha- 1201 840 1694 143 4244 44 thio-TP 03601015003 1-Ethyl-pseudo-UTP 122 36 7894 383 5700 288 03601015004 1-Propyl-pseudo-UTP 140 7 838 36 1613 75 00901015006 2-Thio-pseudo-UTP 2198 297 12310 2602 5988 238 00901014003 5-Trifluoromethyl-CTP 23340 294 10200 817 31510 156 00901013004 5-Methyl-2-thio-UTP 235 30 1100 11 2319 44 00901014005 5-Hydroxymethyl-CTP 154000 5090 9425 442 26600 462 00901013004 UTP-5-oxyacetic acid Me 162 30 544 32 4388 775 ester 00901013007 5-methoxy-UTP 306600 619 17530 3678 26440 344 00901014007 N4—Ac-CTP 167600 1461 8675 1790 8794 131 03601014008 5-Bromo-CTP 194900 5665 8581 143 13510 1706 03601014009 5-Aminoallyl-CTP 887 242 169 3 1806 181 03601012004 2-Aminopurine-riboside TP 107000 28420 22180 362 8675 1025 00901013008 2-Thio-UTP 1181 222 1894 92 3744 244 00901013009 5-Bromo-UTP 218500 11290 18220 6 21530 1231 00902014001 Alpha-thio-CTP 142900 20660 17000 1671 26930 281 00901013010 5-Aminoallyl-UTP 14870 2587 1863 54 3706 706 00902013001 Alpha-thio-UTP 51180 4835 14260 1465 20530 1381 00901014003/ 5-Trifluoromethyl-CTP/ 281 00901015002 1-Methyl-pseudo-UTP 0090101400/ 5-Hydroxymethyl-CTP/ 706 00901015002 1-Methyl-pseudo-UTP 0360101400/ 5-Bromo-CTP/1-Methyl- 1381 00901015002 pseudo-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 123784.09 3671.05 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 122397.73 8593.01 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 134988.64 8945.90 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 12.5% 5-Methyl-CTP + 87.5% 146261.36 1569.59 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 90477.27 1758.97 00901015001 CTP/Pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 105772.73 706.92 00901015001 CTP/Pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 122204.55 1707.45 00901015001 CTP/Pseudo-UTP 00901014035/ 5-Iodo-CTP/1-Methyl-pseudo- 38787.75 696.85 50375.00 610.80 00901015002 UTP 00901014035/ 75% 5-Iodo-CTP + 25% 63034.09 921.39 00901015002 CTP/1-Methyl-pseudo-UTP 00901014035/ 50% 5-Iodo-CTP + 50% 74159.09 1004.21 00901015002 CTP/1-Methyl-pseudo-UTP 00901014035/ 25% 5-Iodo-CTP + 75% 98147.73 562.10 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% 36208 446 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% 24515 1601 00901015001 CTP/Pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% 33896 2220 00901015001 CTP/Pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% 43143 117 00901015001 CTP/Pseudo-UTP 00901014003/ 5-Trifluoro-methyl-CTP/5- 29120 1933 00901013007 Methoxy-UTP 12201014040/ 5-Hydroxy-methyl-CTP/5- 18398 3813 00901013007 Methoxy-UTP 03601014008/ 5-Bromo-CTP/5-Methoxy- 23204 882 00901013007 UTP 00901014002/ 5-Methyl-CTP/75% 2- 15466 1041 −1170 −42 00901013008 Thio-UTP + 25% UTP 00901014002/ 5-Methyl-CTP/25% 2- 65466 2491 19485 741 00901013008 Thio-UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 1409 89 −4523 −75 00901013008 CTP/2-Thio-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 614 12 −4208 −147 00901013008 CTP/2-Thio-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 886 0 −4028 −12 00901013008 CTP/2-Thio-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 78500 4338 56250 2511 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 61886 239 81000 1619 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 78318 6068 130568 2050 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 36989 2095 32130 966 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 51625 11043 54158 1992 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 63864 1847 99158 3010 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 58875 5575 62888 4864 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 56489 3144 95130 3620 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 62432 369 129600 2980 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901013008 CTP/75% 2-Thio-UTP + 66148 1097 25% UTP 00901013008 CTP/50% 2-Thio-UTP + 111693 3905 50% UTP 00901013008 CTP/25% 2-Thio-UTP + 116784 2846 75% UTP

TABLE 27 In vitro Translation Data. In Vitro In Vitro In Vitro Translation Translation Translation Luc hEpo hGCSF Expression Expression Expression Chemical Alterations (RLUs) (pg/ml) (pg/ml) 75% 5-Bromo-CTP 372909 36208 21330 25% CTP 1-Methyl-pseudo-UTP 75% 5-Bromo-CTP 863775 24515 14760 25% CTP Pseudo-UTP 50% 5-Bromo-CTP 1593328 33896 32040 50% CTP Pseudo-UTP 25% 5-Bromo-CTP 193009 43143 63360 75% CTP Pseudo-UTP 5-Trifluoromethyl-CTP 43541 29120 115470 5-Methoxy-UTP 5-Hydroxymethyl-CTP 121836 18398 26595 5-Methoxy-UTP 5-Bromo-CTP 83463 23204 12330 5-Methoxy-UTP

TABLE 28 In vitro Translation Data. mCherry nanoLuc Expression mCherry Expression nanoLuc Compund # Chemical Alterations (pg/mL) Std Dev (RLUs) Std Dev 00901014005/ 5-Hydroxymethyl-CTP/Pseudo-UTP 1613.50 27.58 139336.75 23352.56 00901015001 00901014035/ 5-Iodo-CTP/Pseudo-UTP 240.50 2.12 37553.75 1801.35 00901015001 00901014007/ N4—Ac-CTP/Pseudo-UTP 2156.50 463.15 180876.25 29259.73 00901015001 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 302.00 9.90 24770.50 1690.69 00901013007 00901014002/ 5-Methyl-CTP/5′-Amino-UTP 794.00 25.46 00901014002/ 5-Methyl-CTP/1-Ethyl-pseudo-UTP 211.00 9.90 1757.00 152.03 03601015003 00901014002/ 5-Methyl-CTP/1-Propyl-pseudo-UTP 214.00 42.43 288.50 36.06 03601015004 00901014002/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 1433.50 53.03 74113.50 1583.92 00901013007 25% UTP 00901014002/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 1564.00 145.66 77203.50 4840.85 00901013007 50% UTP 00901014002/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 1507.00 135.76 107758.25 4727.36 00901013007 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 1169.00 117.38 48217.00 2466.39 00901013007 5-Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 1312.50 91.22 74865.25 4357.55 00901013007 5-Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 990.00 196.58 84744.25 12448.26 00901013007 5-Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/75% 1231.00 18.38 104817.75 10710.90 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/75% 1278.50 50.20 72832.25 41.37 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/75% 1248.50 33.23 121615.00 11422.60 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/50% 1937.50 376.89 63651.00 7326.33 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/50% 1374.00 175.36 145398.50 27595.55 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/50% 1375.00 89.10 241049.25 33588.63 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/25% 1146.50 228.40 230246.75 25576.41 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/25% 1875.00 592.56 271458.00 8507.20 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/25% 1906.00 74.95 258728.50 7619.08 00901013007 5-Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 1546.00 19.80 165573.75 2294.21 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 1544.00 158.39 250344.25 420.37 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 2023.00 243.24 336602.50 13238.45 00901013007 CTP/5-Methoxy-UTP (No cap) 660.00 14.14 18313.50 2438.81 00901013007 CTP/5-Methoxy-UTP (cap 0) 2423.50 294.86 75928.75 331.99 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP (No cap) 853.00 25.46 6760.25 228.04 00901013007 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP (cap 0) 3142.50 532.45 19865.25 492.50 00901013007 CTP/UTP (No cap) 1859.00 18.38 29651.75 2075.00 CTP/UTP (cap 0) 5093.00 268.70 139465.00 1797.47 00901014002/ 5-Methyl-CTP/Pseudo-UTP (No cap) 1557.00 19.80 12815.50 1076.22 00901015001 00901014002/ 5-Methyl-CTP/Pseudo-UTP (cap 0) 5814.50 307.59 56361.25 3894.39 00901015001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 1131.00 96.17 11691.25 270.47 00901015002 (No cap) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 3807.50 173.24 47763.00 383.25 00901015002 (cap 0) 00901015002 CTP/1-Methyl-pseudo-UTP (No cap) 3045.00 429.92 37563.25 4984.75 00901015002 CTP/1-Methyl-pseudo-UTP (cap 0) 9539.50 648.42 259230.50 19467.36 CTP/UTP/ATP/GTP (cap ARCA) 5588.50 190.21 168298.75 9877.22 00901014002/ 5-Methyl-CTP/Pseudo-UTP 5052.00 89.10 86986.50 273.65 00901015001 (cap ARCA) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 3016.00 152.74 80634.25 324.21 00901015002 (cap ARCA) 00901015002 CTP/1-Methyl-pseudo-UTP (cap ARCA) 8347.00 1387.34 199318.25 8366.84 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 1045.50 113.84 49016.00 958.84 00901015001/ Alpha-Thio-ATP 00902011001 00902012001 Alpha-Thio-GTP 1401.50 200.11 128260.75 15595.59 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 1401.00 196.58 65491.75 3069.20 00901015001/ Alpha-Thio-GTP 00902012001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 648.50 26.16 42249.25 902.62 00901015002/ Alpha-Thio-GTP 00902012001 00901015002/ 1-Methyl-pseudo-UTP/Alpha-Thio-GTP 2615.00 15.56 213356.00 3404.72 00902012001 00901013007/ 5-Methoxy-UTP/Alpha-Thio-GTP 714.00 33.94 41532.00 0.00 00902012001 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 820.50 68.59 21421.00 0.00 00901013007/ Alpha-Thio-GTP 00902012001 00901011006 N6—Me-ATP 94.00 12.73 2057.00 0.00 00901014002/ 5-Methyl-CTP/Pseudo-UTP/N6—Me-ATP 92.00 1.41 984.00 0.00 00901015001/ 00901011006 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 90.50 3.54 1248.50 500.63 00901015002/ N6—Me-ATP 00901011006 00901015002/ 1-Methyl-pseudo-UTP/N6—Me-ATP 113.00 11.31 817.00 100.41 00901011006 00901013007/ 5-Methoxy-UTP/N6—Me-ATP 80.50 9.19 362.25 71.77 00901011006 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 94.50 20.51 648.50 116.67 00901013007/ N6—Me-ATP 00901011006 03601014039 5-Ethyl-CTP 1718.00 347.90 20473.50 2481.24 03601014039/ 5-Ethyl-CTP/1-Methyl-pseudo-UTP 1856.50 23.33 11843.00 1278.45 00901015002 03601014039/ 5-Ethyl-CTP/5-Methoxy-UTP 667.00 80.61 5166.00 458.91 00901013007 03601014030 5-Methoxy-CTP 1069.50 178.90 13888.25 1154.35 03601014030/ 5-Methoxy-CTP/1-Methyl-pseudo-UTP 794.50 159.10 7416.50 675.29 00901015002 03601014030/ 5-Methoxy-CTP/5-Methoxy-UTP 683.00 203.65 5084.00 1538.66 00901013007 03601014011 5-Ethynyl-CTP 1440.50 16.26 14288.25 3900.05 03601014011/ 5-Ethynyl-CTP/1-Methyl-pseudo-UTP 355.00 29.70 6226.00 808.22 00901015002 03601014011/ 5-Ethynyl-CTP/5-Methoxy-UTP 372.00 43.84 8274.50 2757.72 00901013007 03601014011/ 5-Ethynyl-CTP/Pseudo-UTP 609.50 30.41 1433.00 127.99 00901015001 03601014011/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 1156.00 65.05 31772.00 4555.18 00901013007/ 25% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 1271.00 41.01 36720.00 1120.06 00901013007/ 50% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 1500.50 334.46 37789.00 21064.71 00901013007/ 75% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 75% 5-Methyl-CTP + 25% CTP/75% 965.50 24.75 31655.00 1865.35 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/75% 935.00 147.08 49602.00 1702.71 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/75% 1412.50 79.90 82699.00 1813.02 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/50% 1524.00 22.63 60087.50 3038.44 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/50% 1835.50 321.73 86481.50 2905.50 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/50% 1757.50 270.82 85345.50 512.65 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/25% 1855.00 309.71 71842.00 280.01 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/25% 1184.00 278.60 55291.50 2399.21 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/25% 1884.00 82.02 102894.50 10720.45 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/75% 5-Methoxy-UTP + 25% 646.50 36.06 54569.00 1962.93 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/50% 5-Methoxy-UTP + 50% 1468.00 265.87 103184.50 1434.72 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/25% 5-Methoxy-UTP + 75% 1721.50 368.40 123827.00 4921.46 00901015002 1-Methyl-pseudo-UTP 00901014004/ N4-Methyl-CTP/1-Methyl-pseudo-UTP 9203.50 2590.13 203918.00 19535.95 00901015002 00902014001/ 1-Methyl-pseudo-UTP/2% 5835.00 719.83 88144.00 10417.10v 00901015002 Alpha-Thio-GTP + 98% GTP 00902014001/ 1-Methyl-pseudo-UTP/5% 6561.50 0.71 112307.00 30432.46 00901015002 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 4411.00 642.05 122696.00 4791.36 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/25% 4056.50 391.03 74470.00 1998.28 00902012001 Alpha-Thio-GTP + 75% GTP 00901015002/ 1-Methyl-pseudo-UTP/50% 4339.00 552.96 61497.50 4448.41 00902012001 Alpha-Thio-GTP + 50% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 5146.00 769.33 122779.00 11023.79 00902011001 Alpha-Thio-ATP + 98% ATP 00901015002/ 1-Methyl-pseudo-UTP/5% 5846.50 795.50 98961.00 15034.50 00902011001 Alpha-Thio-ATP + 95% ATP 00901015002/ 1-Methyl-pseudo-UTP/10% 6378.00 53.74 149039.50 15402.91 00902011001 Alpha-Thio-ATP + 90% ATP 00901015002/ 1-Methyl-pseudo-UTP/25% 5380.50 78.49 71078.50 6557.00 00902011001 Alpha-Thio-ATP + 75% ATP 00901015002/ 1-Methyl-pseudo-UTP/50% 5967.50 587.61 98998.00 27495.14 00902011001 Alpha-Thio-ATP + 50% ATP 00901015002 75% 1-Methyl-pseudo-UTP + 25% UTP 5284.50 552.25 122283.00 9775.04 00901015002 50% 1-Methyl-pseudo-UTP + 50% UTP 4553.50 45.96 107640.00 14789.85 00901015001 75% Pseudo-UTP + 25% UTP 5499.00 226.27 153386.00 5263.70 00901015001 50% Pseudo-UTP + 50% UTP 4320.50 1559.17 118446.00 6133.44 00901015001 25% Pseudo-UTP + 75% UTP 5927.50 519.72 99486.00 5593.21 03601013014 75% 5-Methyl-UTP + 25% UTP 2613.00 76.37 92869.00 931.97 03601013014 50% 5-Methyl-UTP + 50% UTP 3623.00 65.05 117837.00 11620.59 03601013014 25% 5-Methyl-UTP + 75% UTP 3504.50 690.84 124512.00 14829.44 00901013003 75% 5-Methyl-2-thio-UTP + 25% UTP 440.50 4.95 11348.00 612.35 00901013003 50% 5-Methyl-2-thio-UTP + 50% UTP 867.50 101.12 23585.00 535.99 00901013003 25% 5-Methyl-2-thio-UTP + 75% UTP 1188.00 19.80 83997.50 2346.89 00901013011 75% 4-Thio-UTP + 25% UTP 8276.00 674.58 261483.50 37563.63 00901013011 50% 4-Thio-UTP + 50% UTP 9816.00 316.78 408404.00 54952.10 00901013011 25% 4-Thio-UTP + 75% UTP 8812.00 22.63 445430.00 23982.23 00901013009 75% 5-Methoxy-carbonylmethyl-UTP + 589.00 19.80 28154.00 3461.99 25% UTP 00901013009 50% 5-Methoxy-carbonylmethyl-UTP + 3179.00 169.71 145500.00 25536.45 50% UTP 00901013009 25% 5-Methoxy-carbonylmethyl-UTP + 10241.00 1238.85 232518.50 45703.85 75% UTP 03601014011 75% 5-Methyl-CTP + 25% CTP 9613.00 1006.92 228234.00 44888.55 03601014011 50% 5-Methyl-CTP + 50% CTP 10413.50 252.44 284277.00 10789.04 03601014011 25% 5-Methyl-CTP + 75% CTP 7868.00 530.33 306557.00 16677.82 03601014011/ 75% 5-Methyl-CTP + 25% CTP/ 8258.50 573.46 182035.50 62016.80 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/ 7701.50 564.98 218864.00 49249.99 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/ 5977.50 395.27 178608.00 2786.00 00901015002 1-Methyl-pseudo-UTP 00901011045 1-Methyl-pseudo-UTP/2% 12779.50 826.61 147196.50 4141.52 Alpha-Thio-ATP + 98% ATP/2% Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 13173.50 78.49 161822.00 20969.96 00901011045 Alpha-Thio-ATP + 95% ATP/5% Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 14117.50 622.96 162037.00 16477.00 00902011001/ Alpha-Thio-ATP + 98% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 14301.00 482.25 180665.00 19412.91 00902011001/ Alpha-Thio-ATP + 95% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 13998.00 41.01 175482.00 5283.50 00902011001/ Alpha-Thio-ATP + 90% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 13546.00 584.07 149344.50 9207.24 00902011001/ Alpha-Thio-ATP + 98% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 12181.50 464.57 166917.00 13071.58 00902011001/ Alpha-Thio-ATP + 90% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 13638.00 1018.23 143875.50 6087.48 00902011001/ Alpha-Thio-ATP + 95% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 10480.00 285.67 139291.00 14927.02 00902011001/ Alpha-Thio-ATP + 90% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901014041 5-Fluoro-CTP 14941.50 499.92 153088.00 48740.87 00901014041/ 5-Fluoro-CTP/1-Methyl-pseudo-UTP 16286.50 6660.24 132525.00 31988.10 00901015002 00901014041/ 5-Fluoro-CTP/5-Methoxy-UTP 5573.00 1479.27 44264.50 6397.20 00901013007 03601014021 5-Phenyl-CTP 182.50 21.92 195.00 70.71 03601014021/ 5-Phenyl-CTP/1-Methyl-pseudo-UTP 366.00 60.81 162.50 14.85 00901015002 03601014021/ 5-Phenyl-CTP/5-Methoxy-UTP 00901013007 228.50 127.99 225.50 105.36 03601014013 N4-Bz-CTP 5134.00 4846.51 25258.00 6164.56 03601014013/ N4-Bz-CTP/1-Methyl-pseudo-UTP 2836.50 748.83 26432.50 5636.35 00901015002 03601014013/ N4-Bz-CTP/5-Methoxy-UTP 315.50 13.44 2029.00 759.43 00901013007 00901011044 N6-Isopentenyl-ATP 270.50 28.99 202.50 7.78 00901015002/ 1-Methyl-pseudo-UTP/ 319.00 16.97 222.00 33.94 00901011044 N6-Isopentenyl-ATP 00901013007/ 5-Methoxy-UTP/N6-Isopentenyl-ATP 357.00 0.00 168.50 75.66 00901011044 03601013036 5-Carbamoyl-methyl-UTP 387.50 26.16 1712.50 277.89 03601013036 75% 5-Carbamoyl-methyl-UTP + 3992.50 9.19 104300.50 12595.69 25% UTP 03601013036 50% 5-Carbamoyl-methyl-UTP + 9169.50 514.07 132913.00 2983.99 50% UTP 03601013036 25% 5-Carbamoyl-methyl-UTP + 5889.00 687.31 201641.50 10463.06 75% UTP 00901013054 75% 5-Hydroxy-UTP + 25% UTP 552.50 24.75 7232.50 1344.21 00901013054 50% 5-Hydroxy-UTP + 50% UTP 1286.00 106.07 31038.50 6930.35 00901013054 25% 5-Hydroxy-UTP + 75% UTP 3345.50 320.32 66768.50 7694.03 00901014007/ 25% N4—Ac-CTP + 75% CTP/25% 6505.00 601.04 108477.00 1175.21 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/25% 5788.00 206.48 61520.50 1248.04 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 25% N4—Ac-CTP + 75% CTP/75% 5437.50 794.08 71288.50 1205.62 00901013007 5-Methoxy-UTP + 25% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/75% 4935.00 487.90 43981.50 4200.92 00901013007 5-Methoxy-UTP + 25% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% 6426.00 1008.33 113720.50 574.88 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% 5181.50 910.05 79721.00 8513.57 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% 8964.00 516.19 109908.00 9466.75 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% 6052.00 376.18 26563.50 915.70 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014004/ N4-Methyl-CTP/5-Methoxy-UTP 6270.00 124.45 134668.50 8003.74 00901013007 00901014004/ 25% N4-Methyl-CTP + 75% CTP/25% 10099.00 1015.41 218004.50 5741.00 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/25% 13926.00 2556.90 224345.50 12830.45 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 25% N4-Methyl-CTP + 75% CTP/75% 4609.50 659.73 141414.50 918.53 00901013007 5-Methoxy-UTP + 25% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/75% 9540.00 1013.99 226181.50 2830.55 00901013007 5-Methoxy-UTP + 25% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% 10280.00 147.08 120197.50 5175.31 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% 11881.00 527.50 124028.00 7937.98 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% 8479.50 912.87 88625.50 6510.33 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% 7671.00 941.87 93162.00 4992.17 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/25% 4125.50 101.12 35287.50 6706.91 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/25% 3850.50 194.45 23939.50 1941.01 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/75% 1311.50 152.03 20229.00 1234.61 00901013007 5-Methoxy-UTP + 25% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/75% 1614.00 196.58 9198.50 195.87 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 463.00 57.98 3053.00 281.43 00901013007 00901014035/ 25% 5-Iodo-CTP + 75% CTP/25% 1372.50 57.28 25003.00 814.59 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/25% 1390.50 194.45 6973.00 159.81 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 25% 5-Iodo-CTP + 75% CTP/75% 1813.00 445.48 16492.00 1004.09 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/75% 525.50 84.15 9455.50 1443.20 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/25% 3145.50 58.69 52020.00 3887.67 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/25% 2057.50 188.80 20969.00 623.67 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/75% 1619.00 103.24 30453.50 57.28 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/75% 885.50 89.80 9986.50 289.21 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/25% 4211.00 22.63 45195.00 10565.59 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/25% 1925.50 910.05 15223.00 2003.94 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/75% 4893.50 1058.54 23719.00 2326.38 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/75% 1251.00 363.45 12230.00 226.27 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/25% 4148.00 879.64 57475.00 14485.79 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/25% 2571.00 53.74 21206.50 1709.08 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/75% 3849.50 89.80 29513.50 4302.74 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/75% 2117.50 342.95 15010.00 50.91 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ Pseudo-iso-CTP/5-Methoxy-UTP 994.00 200.82 43574.00 10889.44 00901013007 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/25% 5758.00 1137.03 64159.50 13939.20 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/25% 5744.00 1473.61 75250.00 10786.21 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/75% 4564.00 1221.88 68965.00 612.35 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/75% 3404.00 354.97 72361.50 8914.50 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 5-Formyl-CTP/5-Methoxy-UTP 1682.50 67.18 9101.00 1731.00 00901013007 00901014036/ 25% 5-Formyl-CTP + 75% CTP/25% 3506.50 593.26 82689.00 7773.93 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/25% 6395.50 47.38 33731.50 737.51 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 25% 5-Formyl-CTP + 75% CTP/75% 3669.00 637.81 44983.50 3263.30 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/75% 2148.50 96.87 23180.50 2706.10 00901013007 5-Methoxy-UTP + 25% UTP 03601014009/ 5-Aminoallyl-CTP/5-Methoxy-UTP 837.00 118.79 5671.50 1010.46 00901013007 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/ 6035.00 1721.10 37859.00 2343.35 00901013007 25% 5-Methoxy-UTP + 75% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/ 3008.50 669.63 15405.50 3845.95 00901013007 25% 5-Methoxy-UTP + 75% UTP 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/ 3920.00 400.22 27443.50 415.07 00901013007 75% 5-Methoxy-UTP + 25% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/ 1501.50 60.10 10076.00 1750.80 00901013007 75% 5-Methoxy-UTP + 25% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/25% 4648.50 846.41 417808.00 193564.82 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/25% 4002.00 461.03 308582.00 29708.38 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/75% 3922.00 1349.16 267008.50 81295.36 00901013007 5-Methoxy-UTP + 25% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/75% 3708.00 1219.05 190718.00 28246.09 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/25% 698.00 48.08 32906.50 16101.53 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/25% 264.00 35.36 253.00 103.24 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/75% 814.00 56.57 27021.00 9814.64 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/75% 318.00 76.37 166.50 9.19 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/25% 6042.00 1090.36 285219.00 86337.74 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/25% 7217.50 480.13 147815.50 23530.39 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/75% 5635.00 210.72 141056.00 19653.33 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/75% 3451.50 178.90 113487.50 24649.04 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 5-Carboxy-CTP/5-Methoxy-UTP 1990.50 408.00 17398.50 12186.99 00901013007 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/25% 6752.00 1552.81 416950.50 35645.96 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/25% 1945.00 697.21 83756.00 33170.38 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/75% 5107.50 1935.35 282742.50 32543.18 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/75% 3646.50 1383.81 193.00 70.71 00901013007 5-Methoxy-UTP + 25% UTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 3348.50 275.06 99921.00 4922.88 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 758.00 124.45 159261.50 6166.68 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 238760.00 20470.74 00901012035 7-Deaza-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 7114.50 1137.73 74409.50 9843.63 00901012010 2-Amino-6-Cl-purine-TP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 767.00 59.40 118015.50 7197.64 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 68928.00 17768.18 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 21140.00 3135.31 172191.50 6347.70 00901011004 N6—Me-2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 7155.00 562.86 85361.00 4201.63 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 135911.00 7761.20 00901011004 N6—Me-2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 161490.00 9041.07 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 5-Methoxy-UTP/2-amino purine-TP 318.00 2.83 288.50 0.71 00901012004 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 3201.50 509.82 31898.50 3615.44 00901012004 2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 4383.50 70.00 53125.00 6772.67 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 1945.50 51.62 33986.00 15980.61 00901012004 2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 2156.00 25.46 36032.00 19221.99 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 5-Methoxy-UTP/8-Azido-ATP 332.00 14.14 170.50 84.15 00901011005 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 2125.50 282.14 88743.00 6638.32 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 1184.00 69.30 57991.50 17361.59 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 2396.00 651.95 49592.00 6083.95 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 1148.00 275.77 94738.50 29371.09 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 5-Methoxy-UTP/N7—Me-GTP 292.00 36.77 198.00 41.01 00901012012 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 2610.00 84.85 91309.50 18029.10 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 984.00 154.15 17814.00 3616.14 00901012012 N7—Me-GTP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 1166.50 48.79 22419.00 2610.64 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 1000.50 62.93 9455.50 4025.56 00901012012 N7—Me-GTP + 25% GTP 00901013042 5-Isopentenyl-aminomethyl-UTP 313.50 10.61 196.00 12.73 00901013042 75% 5-Isopentenyl-aminomethyl-UTP + 2296.00 470.93 109067.00 10542.96 25% UTP 00901013042 50% 5-Isopentenyl-aminomethyl-UTP + 3804.00 104.65 82844.50 10885.91 50% UTP 00901013042 25% 5-Isopentenyl-aminomethyl-UTP + 1457.50 149.20 59094.50 9946.87 75% UTP 00901014002/ 5-Me-CTP/5-Isopentenyl-aminomethyl- 319.50 27.58 180.00 52.33 00901013042 UTP

Example 85. Transfection in HeLa Cells

The day before transfection, 20.000 HeLa cells (ATCC no. CCL-2; Manassas, Va.) were harvested by treatment with Trypsin-EDTA solution (LifeTechnologies, Grand Island, N.Y.) and seeded in a total volume of 100 ul EMEM medium (supplemented with 10% FCS and 1× Glutamax) per well in a 96-well cell culture plate (Corning, Manassas, Va.). The cells were grown at 37° C. in 5% CO₂ atmosphere overnight. Next day, 83 ng of Luciferase modRNA or 250 ng of human GCSF modRNA, harboring chemical alterations on the bases or the ribose units, were diluted in 10 ul final volume of OPTI-MEM (LifeTechnologies, Grand Island, N.Y.). Lipofectamine 2000 (LifeTechnologies, Grand Island, N.Y.) was used as transfection reagent and 0.2 μl were diluted in 10 ul final volume of OPTI-MEM. After 5 min incubation at room temperature, both solutions were combined and incubated additional 15 min at room temperature. Then the 20 μl were added to the 100 ul cell culture medium containing the HeLa cells. The plates were then incubated as described before. For transfection with mCherry or nanoLuc, a mixture of mRNA expressing mCherry or nanoLuc is mixed with 0.5 uL of Lipofectamine2000 (Life Technologies; cat#11668019) and OptiMem (Life Tehnologies; cat#31985062). A final volume of 20 uL of this mixture is added to 100 uL of cells. The final amount of human EPO, G-CSF, Firefly Luciferase, mCherry and nanoLuc mRNA used per well is 250 ng except for nanoLuc mRNA which we used at 25 ng per well, respectively.

After 18 h to 22 h incubation, cells expressing luciferase were lysed with 100 μl Passive Lysis Buffer (Promega, Madison, Wis.) according to manufacturer instructions. Aliquots of the lysates were transferred to white opaque polystyrene 96-well plates (Corning, Manassas, Va.) and combined with 100 ul complete luciferase assay solution (Promega, Madison, Wis.). The lysate volumes were adjusted or diluted until no more than 2 mio relative light units per well were detected for the strongest signal producing samples. The background signal of the plates without reagent was about 200 relative light units per well. The plate reader was a BioTek Synergy H1 (BioTek, Winooski, Vt.).

For the cells transfected with nanoLuc mRNA, the media is removed and washed once with sterile 100 uL of PBS pH7.4 (Life Technologies; cat #10010049). The cells are lysed with 100 uL of 1× Glo Lysis buffer (Promega; cat # E2661). The lysate is diluted 100fold in Nano-Glo Luciferase substrate (Promega; cat# N1110) and read in a luminometer. For cells transfected with FireFly luciferase, the luminescence activity is measured according to manufacturer's protocol (Promega, cat# E1501).

For the cells transfected with mCherry, mCherry fluorescence reading is measured directly of the cells at excitation of 585 nm and emission of 615 nm wavelength.

After 18h to 22h incubation, cell culture supernatants of cells expressing human GCSF or human EPO were collected and centrifuged at 10.000rcf for 2 min. The cleared supernatants were transferred and analyzed with a human GCSF-specific or EPO ELISA kit (both from R&D Systems, Minneapolis, Minn.; Cat. #s SCS50, DEP00, respectively) according to the manufacturer instructions. All samples were diluted until the determined values were within the linear range of the human GCSF or EPO ELISA standard curve.

TABLE 29 HeLa Cell Transfection Data. Luc Luc Epo Epo GCSF GSCF Expression Std Expression Std Expression Std Compound # Chemical Alterations (RLUs) Dev (pg/ml) Dev (pg/ml) Dev 00902015001 PseudoU-alpha-thio-TP 2015 131.5 302800 2544 320000 1687 00902015002 1-Methyl-pseudo-U-alpha- 4900 325.3 348600 7151 372100 4637 thio-TP 03601015003 1-Ethyl-pseudo-UTP 130.50 34.65 52780 1491 209300 3033 03601015004 1-Propyl-pseudo-UTP 0.00 0.00 10000 74.07 00901015006 2-Thio-pseudo-UTP 1999 384.7 380600 4607 239300 10490 00901014003 5-Trifluoromethyl-CTP 32250 808.9 668100 2155 1039000 9891 00901013004 5-Methyl-2-thio-UTP 8333 57.47 16420 0.00 00901014004 N4-methyl CTP 90280 885.1 00901014005 5-Hydroxymethyl-CTP 22160 754.5 440300 1931 1151000 39860 00901013004 UTP-5-oxyacetic acid Me 8333 402.3 5714 221.5 ester 00901013005 5-Methoxy carbonyl methyl- 8333 172.4 UTP 00901013007 5-methoxy-UTP 31580 1241 1116000 18170 1399000 2004 00901014007 N4—Ac-CTP 141300 4463 2907000 41750 2094000 6826 03601014008 5-Bromo-CTP 125700 28470 3263000 42000 1003000 2605 03601014009 5-Aminoallyl-CTP 319.00 8.49 3488 23.41 24290 571.43 03601012004 2-Aminopurine-riboside TP 713.50 3.54 56980 292.2 39290 205.7 00901013008 2-Thio-UTP 423.00 16.97 182600 1808 214300 4915 00901013009 5-Bromo-UTP 2731 36.06 210500 3218 118600 3926 00902014001 Alpha-thio-CTP 1845 1.41 195400 3733 285000.00 6925 00901013010 5-Aminoallyl-UTP 1946 63.64 67440 1984 40710 211.0 00902013001 Alpha-thio-UTP 937.0 57.98 190700 8612 73570 923.5 00901014003/ 5-Trifluoromethyl-CTP/1- 1668 254.6 492.2 2750 427100 5002 00901015002 Methyl-pseudo-UTP 00901014005/ 5-Hydroxymethyl-CTP/1- 22530 349.3 164800 17320 1666000 23170 00901015002 Methyl-pseudo-UTP 03601014008/ 5-Bromo-CTP/1-Methyl- 28210 420.70 1248000 21190 474300 4124 00901015002 pseudo-UTP 00901014003/ 5-Trifluoromethyl- 1340 231.2 429900 879 431400 4013 00901015001 CTP/Pseudo-UTP 03601014008/ 5-Bromo-CTP/Pseudo-UTP 19340 224.9 859700 2097 355700 14150 00901015001 00901014003/ 75% 5-Trifluoromethyl-CTP + 1086 166.2 577900 4792 754300 00901015002 25% CTP/1-Methyl-pseudo-UTP 00901014003/ 50% 5-Trifluoromethyl-CTP + 3932 89.09 1043000 20620 1267000 8739 00901015002 50% CTP/1-Methyl-pseudo-UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 15190 159.1 1991000 38850 2271000 00901015002 75% CTP/1-Methyl-pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% 45140 2274 2114000 59190 1921000 14350 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% 76360 175.4 2782000 2903 2717000 4819 00901015002 CTP/1-Methyl-pseudo-UTP 00901014005/ 50% 5-Hydroxymethyl-CTP + 54390 628.6 2307000 23850 2624000 25380 00901015002 50% CTP/1-Methyl-pseudo-UTP 00901014007/ N4Ac-CTP/1-Methyl- 112200 633.6 2005000 4713 2074000 52510 00901015002 pseudo-UTP 00901014007/ N4Ac-CTP/5-Methoxy-UTP 7990 2724 420800 24440 611400 2199 00901013007 00901014002/ 75% 5-Methyl-CTP + 25% 1232354 17485 2139785 18117 2775714 87625 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 1432767 61397 1379570 8750 1448571 42152 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 787045 42863 1843011 1992 1748571 14205 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 12.5% 5-Methyl-CTP + 87.5% 989431 5967 883871 11071 1493571 30837 00901015002 CTP/1-Methyl-pseudo-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 572903 39627 1165591 1911 655714 1865 00901015001 CTP/Pseudo-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 77502 4088 1663441 8895 177857 922 00901015001 CTP/Pseudo-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 27416 950 2523656 57933 324286 6036 00901015001 CTP/Pseudo-UTP 00901014035/ 5-Iodo-CTP/1-Methyl- 112268 6635 −43689 −1440 1815714 41343 00901015002 pseudo-UTP 00901014035/ 75% 5-Iodo-CTP + 25% 341089 43209 −29126 −6045 −20714 0 00901015002 CTP/1-Methyl-pseudo-UTP 00901014035/ 50% 5-Iodo-CTP + 50% 0 0 −31068 −7170 −20714 −384 00901015002 CTP/1-Methyl-pseudo-UTP 00901014035/ 25% 5-Iodo-CTP + 75% 0 0 −29126 −6595 −12857 −1621 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% 534332 8808 2294872 79216 1510500 14432 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% 729830 12556 1650000 31618 882500 0 00901015001 CTP/Pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% 1023504 154028 1442308 28916 1486000 13942 00901015001 CTP/Pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% 153026 1945 1358974 9198 1801500 3872 00901015001 CTP/Pseudo-UTP 00901014003/ 5-Trifluoro-methyl-CTP/5- 16168 1645 67949 388 351500 4276 00901013007 Methoxy-UTP 12201014040/ 5-Hydroxy-methyl-CTP/5- 152072 3198 921795 9865 1367500 17249 00901013007 Methoxy-UTP 03601014008/ 5-Bromo-CTP/5-Methoxy- 61114 3684 951282 6606 338500 6804 00901013007 UTP 00901014002/ 5-Methyl-CTP/75% 2-Thio- 17763 344 477000 1529 382500 2045 00901013008 UTP + 25% UTP 00901014002/ 5-Methyl-CTP/25% 2-Thio- 219065 6966 1396000 17190 1317500 27008 00901013008 UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 1404 1 49000 0 63125 799 00901013008 CTP/2-Thio-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 1001 10 48000 246 67500 0 00901013008 CTP/2-Thio-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 2203 234 62000 890 83750 1241 00901013008 CTP/2-Thio-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 112628 238 1820000 21281 1730000 23829 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 111285 2110 2283000 16911 2017500 3598 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 135131 6386 1923000 40875 2150625 30663 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 103382 8355 1208000 15156 1520000 7103 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 62049 3425 1823000 9254 1693750 28566 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 83620 8239 1941000 7437 1821250 11943 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 88292 1126 1959000 0 2106875 48662 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 102207 5544 1665000 23891 2145000 7214 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 121186 2148 2053000 46659 2340000 19299 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901013008 CTP/75% 2-Thio-UTP + 25% 34637 1022 1561290 0 1230714 22497 UTP 00901013008 CTP/50% 2-Thio-UTP + 50% 41617 586 824731 4567 1251429 32462 UTP 00901013008 CTP/25% 2-Thio-UTP + 75% 25957 192 604301 3463 1103571 14434 UTP 03601014008/ 75% 5-Bromo-CTP + 25% 534332 8808 2294872 79216 1510500 14432 00901015002 CTP/1-Methyl-pseudo-UTP 03601014008/ 75% 5-Bromo-CTP + 25% 729830 12556 1650000 31618 882500 0 00901015001 CTP/Pseudo-UTP 03601014008/ 50% 5-Bromo-CTP + 50% 1023504 154028 1442308 28916 1486000 13942 00901015001 CTP/Pseudo-UTP 03601014008/ 25% 5-Bromo-CTP + 75% 153026 1945 1358974 9198 1801500 3872 00901015001 CTP/Pseudo-UTP 00901014003/ 5-Trifluoro-methyl-CTP/5- 16168 1645 67949 388 351500 4276 00901013007 Methoxy-UTP 12201014040/ 5-Hydroxy-methyl-CTP/5- 152072 3198 921795 9865 1367500 17249 00901013007 Methoxy-UTP 03601014008/ 5-Bromo-CTP/5-Methoxy- 61114 3684 951282 6606 338500 6804 00901013007 UTP 00901014002/ 5-Methyl-CTP/75% 2-Thio- 17763 344 477000 1529 382500 2045 00901013008 UTP + 25% UTP 00901014002/ 5-Methyl-CTP/25% 2-Thio- 219065 6966 1396000 17190 1317500 27008 00901013008 UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 1404 1 49000 0 63125 799 00901013008 CTP/2-Thio-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 1001 10 48000 246 67500 0 00901013008 CTP/2-Thio-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 2203 234 62000 890 83750 1241 00901013008 CTP/2-Thio-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 112628 238 1820000 21281 1730000 23829 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 111285 2110 2283000 16911 2017500 3598 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 135131 6386 1923000 40875 2150625 30663 00901013008 CTP/75% 2-Thio-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 103382 8355 1208000 15156 1520000 7103 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 62049 3425 1823000 9254 1693750 28566 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 83620 8239 1941000 7437 1821250 11943 00901013008 CTP/50% 2-Thio-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 88292 1126 1959000 0 2106875 48662 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 102207 5544 1665000 23891 2145000 7214 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 121186 2148 2053000 46659 2340000 19299 00901013008 CTP/25% 2-Thio-UTP + 75% UTP 00901013008 CTP/75% 2-Thio-UTP + 25% 34637 1022 1561290 0 1230714 22497 UTP 00901013008 CTP/50% 2-Thio-UTP + 50% 41617 586 824731 4567 1251429 32462 UTP 00901013008 CTP/25% 2-Thio-UTP + 75% 25957 192 604301 3463 1103571 14434 UTP

TABLE 30 HeLa cell transfection data. mCherry nanoLuc Expression mCherry Expression nanoLuc Compound # Chemical Alterations (pg/mL) Std Dev (RLUs) Std Dev 00901014005/ 5-Hydroxymethyl-CTP/Pseudo-UTP 754.5 174.66 18716350 1611567 00901015001 00901014035/ 5-Iodo-CTP/Pseudo-UTP 31.5 3.54 80495000 2012426 00901015001 00901014007/ N4—Ac-CTP/Pseudo-UTP 1830.5 120.92 23107500 9565741 00901015001 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 168.5 4.95 17474000 94752.31 00901013007 00901014002/ 5-Methyl-CTP/1-Propyl-pseudo-UTP 33 0 175500 16263.46 03601015004 00901014002/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 1104.5 78.49 3898000 229527 00901013007 25% UTP 00901014002/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 1896 86.27 8598100 1025446 00901013007 50% UTP 00901014002/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 2348 77.78 14881300 216375 00901013007 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 0 0 2555850 896541 00901013007 5-Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 1123.5 7.78 2229400 43134 00901013007 5-Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 1395.5 36.06 1185700 201101 00901013007 5-Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/75% 1658.5 61.52 9555300 3433569 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/75% 0 0 4134200 1555918 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/75% 1742.5 75.66 9920150 5418913 00901013007 5-Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/50% 2055.5 71.42 9705650 4237903 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/50% 2276.5 187.38 11126100 6158759 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/50% 0 0 21769050 3721715 00901013007 5-Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/25% 2437 239.00 25706850 4158141 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/25% 2586.5 173.24 30849100 4655450 00901013007 5-Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/25% 3248 151.32 22711150 3111906 00901013007 5-Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 0 0 10641950 2563049.9 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 2669 107.48 15843050 2751423 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 3398.5 232.64 10717000 1483934 00901013007 CTP/5-Methoxy-UTP(No cap) 27 5.66 3550 353.55 00901013007 CTP/5-Methoxy-UTP (cap 0) 1170.5 62.93 322200 1697.06 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP(No cap) 28.5 4.95 22700 1272.79 00901013007 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP(cap 0) 754 106.07 385000 12869.34 00901013007 CTP/UTP(No cap) 26.5 2.12 6900 989.95 CTP/UTP(cap 0) 200 14.14 1521900 512511 00901014002/ 5-Methyl-CTP/Pseudo-UTP(No cap) 41.5 3.54 23300 3535.53 00901015001 00901014002/ 5-Methyl-CTP/Pseudo-UTP (cap 0) 1364.5 14.85 1690850 90014.69 00901015001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 35.5 4.95 9000 565.69 00901015002 (No cap) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP(cap 1385 114.55 355800 53598.69 00901015002 0) 00901015002 CTP/1-Methyl-pseudo-UTP (No cap) 48.5 4.95 31800 3535.53 00901015002 CTP/1-Methyl-pseudo-UTP (cap 0) 1894 268.70 6829100 209445.0 CTP/UTP/ATP/GTP (cap ARCA) 104.5 4.95 405650 27365.03 00901014002/ 5-Methyl-CTP/Pseudo-UTP 908 178.19 5030600 919238.8 00901015001 (cap ARCA) 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP 817 36.77 2396050 30334.88 00901015002 (cap ARCA) 00901015002 CTP/1-Methyl-pseudo-UTP (cap ARCA) 876.5 231.22 4904800 617445.6 00902011001 Alpha-Thio-ATP 28.5 3.54 900 141.42 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 26 0 4500 424.26 00901015001/ Alpha-Thio-ATP 00902011001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 27.5 2.12 700 141.42 00901015002/ Alpha-Thio-ATP 00902011001 00901015002/ 1-Methyl-pseudo-UTP/Alpha-Thio-ATP 27.5 2.12 1100 282.84 00902011001 00901013007/ 5-Methoxy-UTP/Alpha-Thio-ATP 24 2.83 900 282.84 00902011001 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 25.5 3.54 850 212.13 00901013007/ Alpha-Thio-ATP 00902011001 00902012001 Alpha-Thio-GTP 54.5 0.71 4500 565.69 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 306 43.84 13650 2899.14 00901015001/ Alpha-Thio-GTP 00902012001 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 135 7.07 8350 1343.50 00901015002/ Alpha-Thio-GTP 00902012001 00901015002/ 1-Methyl-pseudo-UTP/Alpha-Thio-GTP 100 19.80 19450 2757.72 00902012001 00901013007/ 5-Methoxy-UTP/Alpha-Thio-GTP 101.5 21.92 1800 424.26 00902012001 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 183.5 26.16 2200 282.84 00901013007/ Alpha-Thio-GTP 00902012001 00901011006 N6—Me-ATP 26 2.83 950 70.71 00901014002/ 5-Methyl-CTP/Pseudo-UTP/ 26.5 4.95 750 353.55 00901015001/ N6—Me-ATP 00901011006 00901014002/ 5-Methyl-CTP/1-Methyl-pseudo-UTP/ 29 1.41 800 0 00901015002/ N6—Me-ATP 00901011006 00901015002/ 1-Methyl-pseudo-UTP/N6—Me-ATP 28 2.83 1850 636.40 00901011006 00901013007/ 5-Methoxy-UTP/N6—Me-ATP 23 2.83 1200 424.26 00901011006 00901014002/ 5-Methyl-CTP/5-Methoxy-UTP/ 22.5 2.12 700 0 00901013007/ N6—Me-ATP 00901011006 03601014039 5-Ethyl-CTP 1556.5 256.68 3690400 717713.3 03601014039/ 5-Ethyl-CTP/1-Methyl-pseudo-UTP 324.5 23.33 993550 270751.1 00901015002/ 03601014039/ 5-Ethyl-CTP/5-Methoxy-UTP 324 22.63 254400 98429.26 00901013007 03601014030 5-Methoxy-CTP 645.5 350.02 7304450 1760342.3 03601014030/ 5-Methoxy-CTP/1-Methyl-pseudo-UTP 316 178.19 4611050 1119137.9 00901015002 03601014030/ 5-Methoxy-CTP/5-Methoxy-UTP 225.5 118.09 1271200 384666.09 00901013007 03601014011 5-Ethynyl-CTP 368.5 301.93 6232300 1554645 03601014011/ 5-Ethynyl-CTP/1-Methyl-pseudo-UTP 58.5 7.78 1244950 424759.04 00901015002 03601014011/ 5-Ethynyl-CTP/5-Methoxy-UTP 87 21.21 569150 154927.1 00901013007 03601014011/ 5-Ethynyl-CTP/Pseudo-UTP 97.5 36.06 158450 29486.35 00901015001 03601014011/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 307100 8343.86 1884.5 31.82 00901013007/ 25% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 200800 7778.17 1667 74.95 00901013007/ 50% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 334450 7566.04 2217.5 96.87 00901013007/ 75% 1-Methyl-pseudo-UTP 00901015002 03601014011/ 75% 5-Methyl-CTP + 25% CTP/75% 221100 19374.73 1879.5 334.46 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/75% 316700 35496.76 1913.5 17.68 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/75% 820150 106419.6 2527 93.34 00901013007/ 5-Methoxy-UTP + 25% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/50% 699550 124804.4 2721.5 108.19 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/50% 776650 60881.89 2803.5 273.65 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/50% 753050 18738.33 2535 4.24 00901013007/ 5-Methoxy-UTP + 50% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% CTP/25% 709150 777.82 3184.5 150.61 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/25% 499100 59538.39 1992 70.71 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/25% 925050 79832.36 2302.5 157.68 00901013007/ 5-Methoxy-UTP + 75% 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/75% 5-Methoxy-UTP + 25% 429250 59891.94 1423 45.25 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/50% 5-Methoxy-UTP + 50% 867750 25243.71 2241.5 125.16 00901015002 1-Methyl-pseudo-UTP 00901013007/ CTP/25% 5-Methoxy-UTP + 75% 1097100 23617.37 2767.5 147.79 00901015002 1-Methyl-pseudo-UTP 00901014004/ N4-Methyl-CTP/1-Methyl-pseudo-UTP 113 19.80 190550 23263.81 00901015002 00902014001/ Alpha-thio-CTP/1-Methyl-pseudo-UTP 31.5 7.78 350 70.71 00901015002 00901015002/ 1-Methyl-pseudo-UTP/2% 1232 306.88 1952950 90580.38 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 1703.5 75.66 1518750 97651.45 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 850 53.74 1869050 45749.81 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/25% 340.5 13.44 688150 29486.35 00902012001 Alpha-Thio-GTP + 75% GTP 00901015002/ 1-Methyl-pseudo-UTP/50% 444 36.77 537150 9828.78 00902012001 Alpha-Thio-GTP + 50% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 1063.5 214.25 2748350 107692.4 00902011001 Alpha-Thio-ATP + 98% ATP 00901015002/ 1-Methyl-pseudo-UTP/5% 1702 56.57 2098700 254275.6 00902011001 Alpha-Thio-ATP + 95% ATP 00901015002/ 1-Methyl-pseudo-UTP/10% 1771 340.83 3053950 52396.61 00902011001 Alpha-Thio-ATP + 90% ATP 00901015002/ 1-Methyl-pseudo-UTP/25% 167 14.14 986750 50133.87 00902011001 Alpha-Thio-ATP + 75% ATP 00901015002/ 1-Methyl-pseudo-UTP/50% 413.5 37.48 713250 65690.22 00902011001 Alpha-Thio-ATP + 50% ATP 00901015002 75% 1-Methyl-pseudo-UTP + 25% UTP 232.5 50.20 4297950 92843.12 00901015002 50% 1-Methyl-pseudo-UTP + 50% UTP 390.5 20.51 1792550 701520.6 00901015001 75% Pseudo-UTP + 25% UTP 225.5 3.54 1831700 20364.67 00901015001 50% Pseudo-UTP + 50% UTP 149 12.73 467750 22839.54 00901015001 25% Pseudo-UTP + 75% UTP 314.5 13.44 392900 18243.35 03601013014 75% 5-Methyl-UTP + 25% UTP 144 11.31 137900 2262.74 03601013014 50% 5-Methyl-UTP + 50% UTP 143.5 13.44 388800 8202.44 03601013014 25% 5-Methyl-UTP + 75% UTP 89.5 21.92 197750 41365.74 00901013003 75% 5-Methyl-2-thio-UTP + 25% UTP 113 22.63 625450 132299.6 00901013003 50% 5-Methyl-2-thio-UTP + 50% UTP 109.5 2.12 821650 205980.2 00901013003 25% 5-Methyl-2-thio-UTP + 75% UTP 84.5 4.95 821350 105429.6 00901013011 75% 4-Thio-UTP + 25% UTP 364.5 269.41 876950 45466.96 00901013011 50% 4-Thio-UTP + 50% UTP 1387.5 6.36 1298700 257386.8 00901013011 25% 4-Thio-UTP + 75% UTP 247 183.85 1123450 179958.6 00901013009 75% 5-Methoxy-carbonylmethyl-UTP + 27 7.07 6850 494.97 25% UTP 00901013009 50% 5-Methoxy-carbonylmethyl-UTP + 141 55.15 108250 31749.09 50% UTP 00901013009 25% 5-Methoxy-carbonylmethyl-UTP + 448.5 249.61 531050 131875.4 75% UTP 03601014011 75% 5-Methyl-CTP + 25% CTP 148.5 91.22 671750 81529.41 03601014011 50% 5-Methyl-CTP + 50% CTP 122.5 68.59 711350 34436.10 03601014011 25% 5-Methyl-CTP + 75% CTP 118.5 6.36 464200 58831.28 03601014011/ 75% 5-Methyl-CTP + 25% CTP/ 1366.5 51.62 416850 12374.36 00901015002 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% CTP/ 1238.5 92.63 481450 26940.76 00901015002 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% CTP/ 1026.5 185.97 469850 35850.31 00901015002 1-Methyl-pseudo-UTP 00901011045 8-Me-ATP 25 5.66 500 141.42 00901015002/ 1-Methyl-pseudo-UTP/8-Me-ATP 24.5 4.95 450 70.71 00901011045 00901015002/ 1-Methyl-pseudo-UTP/2% 2024 545.89 3095100 271104.7 00902011001/ Alpha-Thio-ATP + 98% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 1550 39.60 2704350 394070.6 00902011001/ Alpha-Thio-ATP + 95% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 2325.5 301.93 2386850 694873.8 00902011001/ Alpha-Thio-ATP + 98% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 1955 330.93 2172700 828729.1 00902011001/ Alpha-Thio-ATP + 95% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 2376 96.17 2417950 531249.3 00902011001/ Alpha-Thio-ATP + 90% ATP/2% 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 1891.5 441.94 1809950 156058.4 00902011001/ Alpha-Thio-ATP + 98% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 1446 602.45 1846750 762190.3 00902011001/ Alpha-Thio-ATP + 90% ATP/5% 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 1214.5 119.50 1516800 430203.7 00902011001/ Alpha-Thio-ATP + 95% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 1537 513.36 1388350 257599.0 00902011001/ Alpha-Thio-ATP + 90% ATP/10% 00902012001 Alpha-Thio-GTP + 90% GTP 00901014041 5-Fluoro-CTP 361.5 30.41 1898750 90438.95 00901014041/ 5-Fluoro-CTP/1-Methyl-pseudo-UTP 1426 415.78 2392400 25880.10 00901015002 00901014041/ 5-Fluoro-CTP/5-Methoxy-UTP 732.5 260.92 206100 1131.37 00901013007 03601014021 5-Phenyl-CTP 24.5 4.95 650 70.71 03601014021/ 5-Phenyl-CTP/1-Methyl-pseudo-UTP 30 5.66 3050 3181.98 00901015002 03601014021/ 5-Phenyl-CTP/5-Methoxy-UTP 31 4.24 650 212.13 00901013007 03601014013 N4-Bz-CTP 233 130.11 13800 3959.80 03601014013/ N4-Bz-CTP/1-Methyl-pseudo-UTP 126 69.30 23100 707.12 00901015002 03601014013/ N4-Bz-CTP/5-Methoxy-UTP 34.5 0.71 800 0 00901013007 00901011044 N6-Isopentenyl-ATP 29.5 7.78 700 0 00901015002/ 1-Methyl-pseudo-UTP/ 35 7.07 700 0 00901011044 N6-Isopentenyl-ATP 00901013007/ 5-Methoxy-UTP/N6-Isopentenyl-ATP 27 5.66 850 70.71 00901011044 03601013036 5-Carbamoyl-methyl-UTP 43.5 2.12 3350 212.13 03601013036 75% 5-Carbamoyl-methyl-UTP + 388 63.64 652800 52184.48 25% UTP 03601013036 50% 5-Carbamoyl-methyl-UTP + 302 21.21 1230150 102459.7 50% UTP 03601013036 25% 5-Carbamoyl-methyl-UTP + 139.5 17.68 873800 6505.38 75% UTP 00901013054 75% 5-Hydroxy-UTP + 25% UTP 28 0 1100 141.42 00901013054 50% 5-Hydroxy-UTP + 50% UTP 34 9.90 8750 353.55 00901013054 25% 5-Hydroxy-UTP + 75% UTP 35 5.66 36700 3252.69 00901014007/ 25% N4—Ac-CTP + 75% CTP/25% 35 0 333400 30264.17 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/25% 122.5 34.65 532750 353.55 00901013007 5-Methoxy-UTP + 75% UTP 00901014007/ 25% N4—Ac-CTP + 75% CTP/75% 966 156.98 585450 116601.9 00901013007 5-Methoxy-UTP + 25% UTP 00901014007/ 75% N4—Ac-CTP + 25% CTP/75% 1017.5 41.72 345900 42002.14 00901013007 5-Methoxy-UTP + 25% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% 31.5 6.36 189000 62791.08 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% 42 2.83 339900 103096.1 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 75% 749 223.45 757400 182716.3 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 25% 1206.5 228.40 279600 81175.85 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014004/ N4-Methyl-CTP/5-Methoxy-UTP 94.5 16.26 111600 14000.71 00901013007 00901014004/ 25% N4-Methyl-CTP + 75% CTP/25% 44.5 14.85 534400 97156.47 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/25% 28 7.07 157600 19374.72 00901013007 5-Methoxy-UTP + 75% UTP 00901014004/ 25% N4-Methyl-CTP + 75% CTP/75% 581 42.43 458950 188443.9 00901013007 5-Methoxy-UTP + 25% UTP 00901014004/ 75% N4-Methyl-CTP + 25% CTP/75% 364 97.58 363300 141987.0 00901013007 5-Methoxy-UTP + 25% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% 196 80.61 411450 138663.6 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% 1613.5 161.93 241550 58760.57 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 75% 1654.5 62.93 373300 124167.9 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 25% 902 100.41 145100 19233.30 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/25% 116.5 12.02 642600 15414.92 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/25% 419.5 85.56 686200 14142.13 00901013007 5-Methoxy-UTP + 75% UTP 03601014008/ 25% 5-Bromo-CTP + 75% CTP/75% 301 35.36 526150 59609.10 00901013007 5-Methoxy-UTP + 25% UTP 03601014008/ 75% 5-Bromo-CTP + 25% CTP/75% 346.5 3.54 325400 35921.02 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 5-Iodo-CTP/5-Methoxy-UTP 116 1.41 52250 5586.14 00901013007 00901014035/ 25% 5-Iodo-CTP + 75% CTP/25% 455 48.08 975850 9121.68 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/25% 549 48.08 412950 30052.03 00901013007 5-Methoxy-UTP + 75% UTP 00901014035/ 25% 5-Iodo-CTP + 75% CTP/75% 367.5 40.31 405300 2545.58 00901013007 5-Methoxy-UTP + 25% UTP 00901014035/ 75% 5-Iodo-CTP + 25% CTP/75% 73.5 9.19 281050 4171.93 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/25% 82.5 12.02 401450 43062.80 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/25% 161.5 14.85 346500 48083.26 00901013007 5-Methoxy-UTP + 75% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% CTP/75% 466.5 41.72 433800 13010.76 00901013007 5-Methoxy-UTP + 25% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% CTP/75% 195 29.70 119900 2404.16 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/25% 284 84.85 565850 24960.86 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/25% 508.5 164.76 1005400 37900.92 00901013007 5-Methoxy-UTP + 75% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% CTP/75% 1023.5 210.01 524900 10040.91 00901013007 5-Methoxy-UTP + 25% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% CTP/75% 292.5 17.68 459250 12091.52 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/25% 1582 178.19 593200 15132.08 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/25% 872.5 4.95 193950 17041.27 00901013007 5-Methoxy-UTP + 75% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% CTP/75% 1612.5 96.87 348900 26304.37 00901013007 5-Methoxy-UTP + 25% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% CTP/75% 659 100.41 115800 8485.281 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ Pseudo-iso-CTP/5-Methoxy-UTP 67.5 2.12 19150 1626.35 00901013007 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/25% 1068 132.94 728150 72054.18 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/25% 1037 83.44 535400 33234.01 00901013007 5-Methoxy-UTP + 75% UTP 00901014014/ 25% Pseudo-iso-CTP + 75% CTP/75% 811 209.30 396050 19869.70 00901013007 5-Methoxy-UTP + 25% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% CTP/75% 232.5 21.92 127750 3323.40 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 5-Formyl-CTP/5-Methoxy-UTP 31.5 2.12 550 70.71 00901013007 00901014036/ 25% 5-Formyl-CTP + 75% CTP/25% 35 4.24 20500 6081.12 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/25% 40 7.07 1250 70.71 00901013007 5-Methoxy-UTP + 75% UTP 00901014036/ 25% 5-Formyl-CTP + 75% CTP/75% 70 12.73 6450 212.13 00901013007 5-Methoxy-UTP + 25% UTP 00901014036/ 75% 5-Formyl-CTP + 25% CTP/75% 27.5 6.36 2600 707.11 00901013007 5-Methoxy-UTP + 25% UTP 03601014009/ 5-Aminoallyl-CTP/5-Methoxy-UTP 61.5 2.12 11650 3181.98 00901013007 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/ 325.5 325.5 594550 63568.89 00901013007 25% 5-Methoxy-UTP + 75% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/ 152.5 0.71 103900 13152.18 00901013007 25% 5-Methoxy-UTP + 75% UTP 03601014009/ 25% 5-Aminoallyl-CTP + 75% CTP/ 1149 15.56 438850 43062.80 00901013007 75% 5-Methoxy-UTP + 25% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 25% CTP/ 168.5 20.51 97550 4596.19 00901013007 75% 5-Methoxy-UTP + 25% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/25% 156 8.49 1231300 115541.2 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/25% 556 69.30 114622.00 224082.1 00901013007 5-Methoxy-UTP + 75% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% CTP/75% 2229 343.65 2397200 317773.8 00901013007 5-Methoxy-UTP + 25% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% CTP/75% 1735.5 409.41 2815000 685186.4 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/25% 36.5 4.95 10450 1202.081 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/25% 33.5 2.12 800 141.42 00901013007 5-Methoxy-UTP + 75% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% CTP/75% 54 4.24 7900 989.95 00901013007 5-Methoxy-UTP + 25% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% CTP/75% 29.5 12.02 900 0 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/25% 903 100.41 1291000 338421.3 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/25% 217 38.18 216950 20576.80 00901013007 5-Methoxy-UTP + 75% UTP 03601014013/ 25% N4-Bz-CTP + 75% CTP/75% 1804 548.71 533750 77286.77 00901013007 5-Methoxy-UTP + 25% UTP 03601014013/ 75% N4-Bz-CTP + 25% CTP/75% 519 66.47 77800 707.11 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 5-Carboxy-CTP/5-Methoxy-UTP 211.5 10.61 75350 1343.50 00901013007 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/25% 158 39.60 851550 126501.4 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/25% 1285 197.99 645850 97368.60 00901013007 5-Methoxy-UTP + 75% UTP 03601014041/ 25% 5-Carboxy-CTP + 75% CTP/75% 1673.5 477.30 1049650 125511.4 00901013007 5-Methoxy-UTP + 25% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% CTP/75% 1245 255.97 850 70.71 00901013007 5-Methoxy-UTP + 25% UTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 185 132.94 1002650 145451.8 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 146 5.66 663500 212273.4 00901012007 O6—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 526450 148280.2 00901012035 7-Deaza-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 233 45.25 727900 19091.88 00901012010 2-Amino-6-Cl-purine-TP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 178.5 30.41 978000 125582.1 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 696200 112429.9 00901012010 2-Amino-6-Cl-purine-TP + 25% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 127 18.38 222600 13152.18 00901011004 N6—Me-2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 36.5 0.71 25600 424.26 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 78800 4242.64 00901011004 N6—Me-2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 15250 1343.50 00901011004 N6—Me-2-amino purine-TP + 25% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 58.5 17.68 382050 28072.13 00901012004 2-aminopurine-TP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 109.5 26.16 324000 11737.97 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 668.5 123.74 350900 29415.64 00901012004 2-amino purine-TP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 211.5 58.69 94750 8414.57 00901012004 2-amino purine-TP + 25% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 79 14.14 262100 21920.31 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 58 2.83 358200 8626.70 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 744.5 197.28 849850 13081.47 00901011005 8-Azido-ATP + 75% ATP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 273.5 7.78 995150 6576.09 00901011005 8-Azido-ATP + 25% ATP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/25% 50 7.07 226200 32668.33 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 25% 5-Methoxy-UTP + 75% UTP/75% 48.5 10.61 259200 9758.07 00901012012 N7—Me-GTP + 25% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/25% 697.5 180.31 283400 76367.53 00901012012 N7—Me-GTP + 75% GTP 00901013007/ 75% 5-Methoxy-UTP + 25% UTP/75% 340 65.05 124150 20152.54 00901012012 N7—Me-GTP + 25% GTP 00901013042 75% 5-Isopentenyl-aminomethyl-UTP + 105 15.56 600650 33728.99 25% UTP 00901013042 50% 5-Isopentenyl-aminomethyl-UTP + 67 8.49 291250 7000.36 50% UTP 00901013042 25% 5-Isopentenyl-aminomethyl-UTP + 35 0 98650 8273.15 75% UTP

TABLE 31 HeLa Cell Transfection Data. mEPO hEPO Expression mEPO Std Expression hEPO Std Compound IP# Chemical Alterations (pg/mL) Dev (RLUs) Dev 00901013007 5-Methoxy-UTP 4015985.00 206711.35 98064.00 2885.00 00901014002/ 5-Me-CTP/5-Methoxy-UTP 2673065.00 1217.64 105491.00 1161.07 00901013007 00901014002/ 5-Methyl-CTP/75% 5-Methoxy-UTP + 25% 3104257.00 269064.03 130192.00 998.43 00901013007 UTP 00901014002/ 5-Methyl-CTP/50% 5-Methoxy-UTP + 50% 3363823.00 119199.82 174280.00 4522.65 00901013007 UTP 00901014002/ 5-Methyl-CTP/25% 5-Methoxy-UTP + 75% 4138876.00 24332.96 109296.00 37827.38 00901013007 UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/5- 3156205.00 91314.36 91250.00 6774.08 00901013007 Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/5- 3223483.00 18292.85 59120.00 26191.24 00901013007 Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/5- 2823962.00 23362.81 61455.00 12254.16 00901013007 Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/75% 5- 3513664.00 137738.74 113442.00 4681.05 00901013007 Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/75% 5- 3483574.00 195104.90 95106.00 1151.17 00901013007 Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/75% 5- 3988525.00 16230.93 106624.00 4590.54 00901013007 Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/50% 5- 3953938.00 80649.77 140778.00 7379.37 00901013007 Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/50% 5- 4573939.00 35800.82 165648.00 29562.72 00901013007 Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/50% 5- 4551109.00 88536.84 111585.00 13060.26 00901013007 Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/25% 5- 3660725.00 294839.49 180139.00 7120.57 00901013007 Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/25% 5- 3930557 400161.62 168004 25750.00 00901013007 Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/25% 5- 4745109 230699.24 133501 14748.83 00901013007 Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 3694885.00 291176.67 96485.00 15829.29 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 4053770 325025.87 140196.00 1467.95 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 4233164.00 337207.91 112796.00 2126.98

Example 86. PBMC Cytokine Assay A. PBMC Isolation and Culture

50 mL of human blood from three donors was received from Research Blood Components (Brighton, Mass.) in sodium heparin tubes. For each donor, the blood was pooled and diluted to 70 mL with DPBS (Life Technologies, Grand Island, N.Y., 14190-250) and split evenly between two 50 mL conical tubes. 10 mL of Ficoll Paque (GE Healthcare, Fairfield, Conn., 17-5442-03) was gently dispensed below the blood layer. The tubes were centrifuged at 2000 rpm for 30 minutes with low acceleration and braking (Thermo, Waltham, Mass., 75004506). The tubes were removed and the buffy coat PBMC layers were gently transferred to a fresh 50 mL conical and washed with DPBS. The tubes were centrifuged at 1450 rpm for 10 minutes.

The supernatant was aspirated and the PBMC pellets were resuspended and washed in 50 mL of DPBS. The tubes were centrifuged at 1450 rpm for 10 minutes. This wash step was repeated, and the PBMC pellets were resuspended in 5 mL of OptiMEM (LifeTechnologies, 31985088) and counted. The cell suspensions were adjusted to a concentration of 3.0×10⁶ cells/mL live cells.

These cells were then plated on 96 well tissue culture treated round bottom plates (Corning Costar, Tewksbury Mass., 3799) per donor at 50 μL per well. Within 30 minutes, transfection mixtures were added to each well at a volume of 50 μL per well.

B. Transfection Preparation

Alternative mRNA encoding firefly Luciferase (mRNA SEQ ID NO: 4), human G-CSF (mRNA sequence shown in SEQ ID NO: 2; polyA tail of approximately 140 nucleotides not shown in sequence; 5′ cap, Cap1) or human EPO (mRNA sequence shown in SEQ ID NO: 6; polyA tail of approximately 140 nucleotides not shown in sequence; 5′ cap, Cap1) were diluted to 100 ng/μL in a final volume of 30 μL of sterile water.

Separately, for each mRNA sample, 2.4 μL of Lipofectamine 2000 (LifeTechnologies 11668019) was diluted with 268 μL OptiMEM. In a 96 well plate the aliquots of 30 μL of each mRNA was added to 270.4 μL of the diluted Lipofectamine 2000. The plate containing the mRNA to be transfected was incubated for 20 minutes. The transfection mixtures were then transferred to each of the human PBMC plates at 50 μL per well (6 wells per mRNA sample). The plates were then incubated at 37° C. After 2 hours incubation, 11 μl of heat-inactivated FCS (LifeTechnologies, 16140071) was added to each well (10% FCS final concentration).

The plates were further incubated at 37° C., 5% CO₂ for additional 18-20 hs. In order to harvest the supernatant, plates were centrifuged at 1450 rpm for 5 min in a swinging plate rotor. The supernatant of 6 wells transfected with the same mRNA was carefully harvested and pooled in a single well of a fresh 96-well plate. Supernatants were either frozen or used fresh until ELISA analysis was done.

Innate Immune Response Analysis

The ability of unaltered and alternative mRNA to trigger innate immune recognition as measured by interferon-alpha production. Use of in vitro PBMC cultures is an accepted way to determine the immunostimulatory potential of oligonucleotides (Robbins et al., Oligonucleotides 2009 19:89-102). The release of interferon was measured with an IFN-alpha multi-subtype ELISA (PBL interferonsource, Pisctaway, N.J., 11668019) following the instructions of the manufacturer. The data is shown in Table 32.

TABLE 32 PBMC Assay Data. Luc hEPO (3 hGCSF (3 (3 Donor Donor Donor Chemical samples) samples) samples) Compound # Alterations pg/ml pg/ml pg/ml 00902015001 PseudoU- 20 −190 50 alpha-thio-TP 170 75 508.33 −90 400 640 00902015002 1-Methyl- 180 −290 425 pseudo-U- 500 512.5 916.66 alpha-thio-TP 180 475 1250 00901015006 2-Thio- 530 −210 358.33 pseudo-UTP 1180 675 166.66 1400 362.5 490 00901016002 5- 6670 4440 6253.33 Trifluoromethyl- 2190 3100 6725 CTP 6410 1412.5 6280 00901014005 5- 7130 4960 6575 Hydroxymethyl- 3680 3100 5800 CTP 8990 2412.5 8180 00901013007 5-methoxy- 390 −210 350 UTP −70 162.5 −41.66 −170 150 40 00901014007 N4—Ac-CTP 7170 4050 5683.33 2500 2137.5 4883.33 5879 5850 4590 03601014008 5-Bromo-CTP 5470 2300 2808.33 1080 487.5 2266.67 5420 500 1650 00901014003/ 5- 0 −13 61.11 00901015002 Trifluoromethyl- −184 −61 13.88 CTP/1- 25 −121 Methyl- pseudo-UTP 00901014005/ 5- 775 135 108.33 00901015002 Hydroxymethyl- 762 3 13.88 CTP/1- 1163 3 Methyl- pseudo-UTP 03601014008/ 5-Bromo- −178 13 −27.77 00901015002 CTP/1-Methyl- −140 −33 −36.11 pseudo-UTP 27.77 −27 00901014003/ 5- 118.75 97 102.77 00901015001 Trifluoromethyl- 237.5 12 111.11 CTP/Pseudo- 186.1 30 UTP 03601014008/ 5-Bromo- 1296 165 513.8 00901015001 CTP/Pseudo- 706.2 9 280.5 UTP 800 12 00901014003/ 75% 5- −181.25 −100 −19.44 00901015002 Trifluoromethyl- −206.25 −58 −213.8 CTP + 25% 0 −64 CTP/1-Methyl- pseudo-UTP 00901014003/ 50% 5- 37.5 −52 −55.55 00901015002 Trifluoromethyl- −193.75 −70 −47.22 CTP + 50% 5.555 −130 CTP/1-Methyl- pseudo-UTP 00901014003/ 25% 5- 1006 216 41.66 00901015002 Trifluoromethyl- 1175 39 −19.44 CTP + 75% 663.8 −79 CTP/1-Methyl- pseudo-UTP 03601014008/ 50% 5-Bromo- 200 −39 27.77 00901015002 CTP + 50% 190.6 −130 −36.11 CTP/1-Methyl- 50 pseudo-UTP 03601014008/ 25% 5-Bromo- 318.7 148 −166.6 00901015002 CTP + 75% 446.8 −58 −8.333 CTP/1-Methyl- 130.5 −73 pseudo-UTP 00901014005/ 50% 5- 1650 806 580.55 00901015002 Hydroxymethyl- 1370 115 83.33 CTP + 50% 752.7 224 CTP/1-Methyl- pseudo-UTP 00901014007/ N4Ac-CTP/1- −96 −77 −19.44 00901015002 Methyl- −65 −136 −36.11 pseudo-UTP −33 −136 00901014007/ N4Ac-CTP/5- −171.8 −87 8.333 00901013007 Methoxy-UTP −84 −155 30.55 −75 −155 03601014008/ 75% 5-Bromo- −19 −38 56 00901015002 CTP −80 56 78 25% CTP −33 78 −4 1-Methyl- pseudo-UTP 03601014008/ 75% 5-Bromo- −2 33 85 00901015001 CTP −145 85 120 25% CTP 33 120 1 Pseudo-UTP 03601014008/ 50% 5-Bromo- 102 56 76 00901015001 CTP −135 76 92 50% CTP 56 92 44 Pseudo-UTP 03601014008/ 25% 5-Bromo- −34 −18 149 00901015001 CTP −135 149 213 75% CTP −18 213 420 Pseudo-UTP 00901014003/ 5- −169 −72 41 00901013007 Trifluoromethyl- −170 41 39 CTP −72 39 27 5-Methoxy- UTP 00901014005/ 5- −176 −116 36 00901013007 Hydroxymethyl- −140 36 109 CTP −116 109 −8 5-Methoxy- UTP 03601014008/ 5-Bromo-CTP −165 −111 27 00901013007 5-Methoxy- −197 −27 88 UTP −111 88 −6 03601014008/ 75% 5-Bromo- 0 0 56 00901015002 CTP + 25% 0 56 78 CTP/1-Methyl- 0 78 0 pseudo-UTP 03601014008/ 75% 5-Bromo- 0 33 85 00901015001 CTP + 25% 0 85 120 CTP/Pseudo- 33 120 1 UTP 03601014008/ 50% 5-Bromo- 102 56 76 00901015001 CTP + 50% 0 76 92 CTP/Pseudo- 56 92 44 UTP 03601014008/ 25% 5-Bromo- 0 0 149 00901015001 CTP + 75% 0 149 213 CTP/Pseudo- 0 213 420 UTP 00901014003/ 5-Trifluoro- 0 0 41 00901013007 methyl-CTP/5- 0 41 39 Methoxy-UTP 0 39 27 12201014040/ 5-Hydroxy- 0 0 36 00901013007 methyl-CTP/5- 0 36 109 Methoxy-UTP 0 109 0 03601014008/ 5-Bromo-CTP/ 0 0 27 00901013007 5-Methoxy- 0 27 88 UTP 0 88 0

Example 87. Cytokine Screen of modRNA with Novel Chemistries in BJ Fibroblast Cells

At 2 or 3 days prior to transfection, 100,000 BJ fibroblast cells (ATCC no. CRL-2522; Manassas, Va.) were harvested by treatment with trypsin-EDTA solution (LifeTechnologies, Grand Island, N.Y.) and seeded in a total volume of 500 ul EMEM medium (supplemented with 10% FCS and 10% Glutamax, both LifeTechnologies, Grand Island, N.Y.) per well in 24-well cell culture plates (Corning, Manassas, Va.). The cells were grown at 37° C. in a 5% CO₂ atmosphere overnight. On the next day, 500 ng modRNA, harboring chemical alterations on the bases or the ribose units, were diluted in 25 ul final volume of OPTI-MEM (LifeTechnologies, Grand Island, N.Y.). Lipofectamine 2000 (LifeTechnologies, Grand Island, N.Y.) was used as transfection reagent and 1.0 ul was diluted in 25 ul final volume of OPTI-MEM. After 5 min incubation at room temperature, both solutions were combined and incubated an additional 15 min at room temperature. The 50 ul were added to the 500 ul cell culture medium containing the BJ fibroblast cells. The plates were then incubated as described above.

After 18 h to 22 h incubation, cell culture supernatants were collected and centrifuged at 10,000 rcf for 2 min. The cleared supernatants were transferred and analyzed with a human IFN-beta ELISA (R&D Systems, Minneapolis, Minn.; Cat. #s 41410-2) and human CCL-5/RANTES ELISA (R&D Systems, Minneapolis, Minn.; Cat. #s SR^(N00)B) according to the manufacturer instructions. All samples were diluted until the determined values were within the linear range of the ELISA standard curves using a BioTek Synergy H1 plate reader (BioTek, Winooski, Vt.).

The data is shown in Tables 33-36

TABLE 33 Cytokine screen results in BJ Fibroblast cells. hEpo hGCSF Luc mRNA mRNA mRNA RANTES RANTES RANTES mRNA Chemistry [pg/ml] [pg/ml] [pg/ml] N4-acetyl-cytidine TP, ATP, GTP, 2546 4360 4103 UTP 5-methoxy-uridine TP, ATP, GTP, 33.33 −6.66 −6.66 UTP pseudouridine TP, ATP, GTP, 4600 5490 5016 CTP 1-methyl-pseudouridine TP, ATP, 5473 8780 4816 GTP, CTP 2-thio-pseudouridine TP, ATP, 1706 5440 2106 GTP, CTP 5-hydroxymethyl-cytidine TP, 9826 2160 9063 ATP, GTP, UTP 5-bromocytidine TP, ATP, GTP, 1380 1343 1900 UTP 5-trifluromethylcytidine TP, ATP, 2303 7593 4203 GTP, UTP

TABLE 34 Cytokine screen results in BJ Fibroblast cells. IFN-β IFN-β (Lucif- (Lucif- erase) Compound # Chemical Alterations erase) Std Dev 00901014002/ 5-Methyl-CTP/75% 2-Thio-UTP + 174.88 6.03 00901013008 25% UTP 00901014002/ 5-Methyl-CTP/25% 2-Thio-UTP + 366.99 15.43 00901013008 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/2- 11.51 3.12 00901013008 Thio-UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/2- 5.35 2.11 00901013008 Thio-UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/2- 32.36 0.63 00901013008 Thio-UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 778.00 8.67 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 769.01 4.04 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 1078.77 44.09 00901013008 75% 2-Thio-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 359.69 13.45 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 699.19 32.86 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 549.7 25.12 00901013008 50% 2-Thio-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% CTP/ 645.30 23.20 00901013008 25% 2-Thio-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% CTP/ 735.98 111.95 00901013008 25% 2-Thio-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% CTP/ 1064.22 3.09 00901013008 25% 2-Thio-UTP + 75% UTP

TABLE 35 Cytokine screen results in BJ Fibroblast cells. IFN-β IFN-β IFN-β (mCherry) IFN-β (nanoLuc) Compound # Chemical Alterations (mCherry) Std Dev (nanoLuc) Std Dev 00901014002/ 5-Methyl-CTP/75% 5- 26.36 1.74 −17 −1 00901013007 Methoxy-UTP + 25% UTP 00901014002/ 5-Methyl-CTP/50% 5- 17.27 0.30 30 3 00901013007 Methoxy-UTP + 50% UTP 00901014002/ 5-Methyl-CTP/25% 5- 376.36 49.82 100 2 00901013007 Methoxy-UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 6.36 0.00 8.33 0.48 00901013007 CTP/5-Methoxy-UTP 00901014002/ 50% 5-Methyl-CTP + 50% 6.36 0.12 10 0.07 00901013007 CTP/5-Methoxy-UTP 00901014002/ 25% 5-Methyl-CTP + 75% 7.27 0.03 11.67 0.66 00901013007 CTP/5-Methoxy-UTP 00901014002/ 75% 5-Methyl-CTP + 25% 4.55 0.08 18.33 0.75 00901013007 CTP/75% 5-Methoxy-UTP + 2% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 17.27 0.30 3.33 0.17 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 15.45 0.27 141.67 7.73 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 83.64 0.27 68.33 6.21 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 366.36 20.22 175 1.46 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 208.18 7.54 1031.67 43.78 00901013007 CTP/50% 5-Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 25% 434.55 25.78 686.67 16.32 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + 50% 538.18 3.34 951.67 5.39 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 75% 674.55 3.53 930 38.92 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy-UTP + 9.09 0.12 258.33 7.13 25% UTP 00901013007 CTP/50% 5-Methoxy-UTP + 1002.73 13.72 1610 10.24 50% UTP 00901013007 CTP/25% 5-Methoxy-UTP + 1996.36 128.45 2126.67 149.21 75% UTP 00901013007 CTP/5-Methoxy-UTP 20 0.81 9 0 (No cap) 00901013007 CTP/5-Methoxy-UTP 27.86 1.77 3 0 (cap 0) 00901014002/ 5-Methyl-CTP/5-Methoxy- −1.43 −0.03 17.33 0.63 00901013007 UTP (No cap) 00901014002/ 5-Methyl-CTP/5-Methoxy- 4.29 0.12 12.00 0.19 00901013007 UTP (cap 0) CTP/UTP (No cap) 2255.71 4.64 1940.0 54.9 CTP/UTP (cap 0) 1918.57 55.64 1407.3 163.1 00901014002/ 5-Methyl-CTP/Pseudo- 92.14 0.99 569.3 54.1 00901015001 UTP (No cap) 00901014002/ 5-Methyl-CTP/Pseudo- 132.86 4.62 391.3 12.5 00901015001 UTP (cap 0) 00901014002/ 5-Methyl-CTP/1-Methyl- 9.29 0.14 2.7 0.0 00901015002 pseudo-UTP (No cap) 00901014002/ 5-Methyl-CTP/1-Methyl- 4.29 0.02 19.3 0.4 00901015002 pseudo-UTP (cap 0) 00901015002 CTP/1-Methyl-pseudo-UTP 343.57 8.52 423.3 7.4 (No cap) 00901015001 CTP/1-Methyl-pseudo-UTP 347.86 9.50 567.3 17.8 (cap 0) CTP/UTP/ATP/GTP 1722.14 46.68 2563.3 180.2 (cap ARCA) 00901014002/ 5-Methyl-CTP/Pseudo-UTP 733.57 5.77 1231.3 56.2 00901015001 (cap ARCA) 00901014002/ 5-Methyl-CTP/1-Methyl- 31.43 0.33 70.7 1.3 00901015002 pseudo-UTP (cap ARCA) 00901015002 CTP/1-Methyl-pseudo-UTP 427.86 17.24 305.3 1.5 (cap ARCA) 00902011001 Alpha-Thio-ATP 10 0.04 00901014002/ 5-Methyl-CTP/Pseudo- 631.43 6.15 00901015001/ UTP/Alpha-Thio-ATP 00902011001 00901014002/ 5-Methyl-CTP/1-Methyl- 7.14 0.08 00901015002/ pseudo-UTP/Alpha-Thio- 00902011001 ATP 00901015002/ 1-Methyl-pseudo- 5.71 0.02 00902011001 UTP/Alpha-Thio-ATP 00901013007/ 5-Methoxy-UTP/ −0.71 −0.01 00902011001 Alpha-Thio-ATP 00901014002/ 5-Methyl-CTP/5-Methoxy- 4.29 0.02 00901013007/ UTP/Alpha-Thio-ATP 00902011001 00902012001 Alpha-Thio-GTP 1215 1.25 00901014002/ 5-Methyl-CTP/Pseudo- 314.29 2.29 00901015001/ UTP/Alpha-Thio-GTP 00902012001 00901014002/ 5-Methyl-CTP/1-Methyl- 18.57 0.34 00901015002/ pseudo-UTP/Alpha-Thio- 00902012001 GTP 00901015002/ 1-Methyl-pseudo-UTP/ 1635.71 61.30 00902012001 Alpha-Thio-GTP 00901013007/ 5-Methoxy-UTP/Alpha- 258 1.01 00902012001 Thio-GTP 00901014002/ 5-Methyl-CTP/5-Methoxy- −19 −0.57 00901013007/ UTP/Alpha-Thio-GTP 00902012001 00901011006 N6-Me-ATP 1282 86.92 00901014002/ 5-Methyl-CTP/Pseudo- 229 7.14 00901015001/ UTP/N6-Me-ATP 00901011006 00901014002/ 5-Methyl-CTP/1-Methyl- −11 −0.05 00901015002/ pseudo-UTP/N6-Me-ATP 00901011006 00901015002/ 1-Methyl-pseudo-UTP/ −11 −0.41 00901011006 N6-Me-ATP 00901013007/ 5-Methoxy-UTP/N6-Me- −9 −0.26 00901011006 ATP 00901014002/ 5-Methyl-CTP/5-Methoxy- −4 −0.13 00901013007/ UTP/N6-Me-ATP 00901011006 03601014039 5-Ethyl-CTP 182 4.23 03601014039/ 5-Ethyl-CTP/1-Methyl- 5 0.03 00901015002/ pseudo-UTP 03601014039/ 5-Ethyl-CTP/5-Methoxy- 9 0.12 00901013007 UTP 03601014030 5-Methoxy-CTP 38 4.27 03601014030/ 5-Methoxy-CTP/1-Methyl- −7 −0.30 00901015002 pseudo-UTP 03601014030/ 5-Methoxy-CTP/5-Methoxy- −10 −0.18 00901013007 UTP 03601014011 5-Ethynyl-CTP 128 1.53 03601014011/ 5-Ethynyl-CTP/1-Methyl- −17 −0.50 00901015002 pseudo-UTP 03601014011/ 5-Ethynyl-CTP/5-Methoxy- 568 20.50 00901013007 UTP 03601014011/ 5-Ethynyl-CTP/Pseudo- 13 0 00901015001 UTP 03601014011/ 5-Methyl-CTP/75% 5- 9 0 −14.17 −0.40 00901013007/ Methoxy-UTP + 25% 1- 00901015002 Methyl-pseudo-UTP 03601014011/ 5-Methyl-CTP/50% 5- −4 −0.01 −26.67 −0.70 00901013007/ Methoxy-UTP + 50% 1- 00901015002 Methyl-pseudo-UTP 03601014011/ 5-Methyl-CTP/25% 5- −43.33 −2.12 00901013007/ Methoxy-UTP + 75% 1- 00901015002 Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% 1020.8 39.8 00901013007/ CTP/75% 5-Methoxy-UTP + 00901015002 25% 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% −4.2 −0.3 00901013007/ CTP/75% 5-Methoxy-UTP + 00901015002 25% 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% −25.0 −0.3 00901013007/ CTP/75% 5-Methoxy-UTP + 00901015002 25% 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% −13.3 0.0 00901013007/ CTP/50% 5-Methoxy-UTP + 00901015002 50% 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% −29.2 −0.3 00901013007/ CTP/50% 5-Methoxy-UTP + 00901015002 50% 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% −25.8 −0.3 00901013007/ CTP/50% 5-Methoxy-UTP + 00901015002 50% 1-Methyl-pseudo-UTP 03601014011/ 75% 5-Methyl-CTP + 25% −17.5 −0.3 00901013007/ CTP/25% 5-Methoxy-UTP + 00901015002 75% 1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% 0.0 0.0 00901013007/ CTP/25% 5-Methoxy-UTP + 00901015002 75% 1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% 39.2 1.5 00901013007/ CTP/25% 5-Methoxy-UTP + 00901015002 75% 1-Methyl-pseudo-UTP 00901013007/ CTP/75% 5-Methoxy-UTP + 3.3 0.0 00901015002 25% 1-Methyl-pseudo-UTP 00901013007/ CTP/50% 5-Methoxy-UTP + −15.8 −0.5 00901015002 50% 1-Methyl-pseudo-UTP 00901013007/ CTP/25% 5-Methoxy-UTP + 15.8 0.3 00901015002 75% 1-Methyl-pseudo-UTP 5-Methyl-5,6-dihydro-UTP 5 0 30 1.23 00901015002/ 1-Methyl-pseudo-UTP/2% 612.5 1.80 1407.5 38.37 00902012001 Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 478.75 7.52 127.5 0.69 00902012001 Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 353.75 6.73 170 1.68 00902012001 Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/25% 992.5 6.05 510 12.07 00902012001 Alpha-Thio-GTP + 75% GTP 00901015002/ 1-Methyl-pseudo-UTP/50% 1238.75 30.42 860 14.39 00902012001 Alpha-Thio-GTP + 50% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 1468.75 136.65 650 23.10 00902011001 Alpha-Thio-ATP + 98% ATP 00901015002/ 1-Methyl-pseudo-UTP/5% 891.25 40.47 372.5 1.32 00902011001 Alpha-Thio-ATP + 95% ATP 00901015002/ 1-Methyl-pseudo-UTP/10% 837.5 19.48 320 12.21 00902011001 Alpha-Thio-ATP + 90% ATP 00901015002/ 1-Methyl-pseudo-UTP/25% 1146.25 75.59 1560 24.70 00902011001 Alpha-Thio-ATP + 75% ATP 00901015002/ 1-Methyl-pseudo-UTP/50% 1085 71.79 1360 8.02 00902011001 Alpha-Thio-ATP + 50% ATP 00901015002 75% 1-Methyl-pseudo-UTP + 1358 55.43 25% UTP 00901015002 50% 1-Methyl-pseudo-UTP + 2248 52.52 50% UTP 00901015001 75% Pseudo-UTP + 25% 2242 88.05 UTP 00901015001 50% Pseudo-UTP + 50% 2308 15.31 UTP 00901015001 25% Pseudo-UTP + 75% 1968 58.03 UTP 03601013014 75% 5-Methyl-UTP + 25% 2476 60.14 UTP 03601013014 50% 5-Methyl-UTP + 50% 2364 46.09 UTP 03601013014 25% 5-Methyl-UTP + 75% 2666 62.48 UTP 00901013003 75% 5-Methyl-2-thio-UTP + 1690 25.80 25% UTP 00901013003 50% 5-Methyl-2-thio-UTP + 2190 77.61 50% UTP 00901013003 25% 5-Methyl-2-thio-UTP + 2650 218.52 75% UTP 00901013011 75% 4-Thio-UTP + 25% 1847.5 59.95 UTP 00901013011 50% 4-Thio-UTP + 50% 2057.5 132.52 UTP 00901013011 25% 4-Thio-UTP + 75% 1488.75 98.39 UTP 00901013009 75% 5-Methoxy- 1632.5 19.70 carbonylmethyl-UTP + 25% UTP 00901013009 50% 5-Methoxy- 1290 36.01 carbonylmethyl-UTP + 50% UTP 00901013009 25% 5-Methoxy- 1462.5 58.24 carbonylmethyl-UTP + 75% UTP 03601014011 75% 5-Methyl-CTP + 25% 1796.25 14.39 CTP 03601014011 50% 5-Methyl-CTP + 50% 1411.25 18.24 CTP 03601014011 25% 5-Methyl-CTP + 75% 2065 42.69 CTP 03601014011/ 75% 5-Methyl-CTP + 25% 77.5 1.88 00901015002 CTP/1-Methyl-pseudo-UTP 03601014011/ 50% 5-Methyl-CTP + 50% 67.5 0.56 00901015002 CTP/1-Methyl-pseudo-UTP 03601014011/ 25% 5-Methyl-CTP + 75% 38.75 0.54 00901015002 CTP/1-Methyl-pseudo-UTP 00901011045 8-Me-ATP −1.25 −0.01 00901015002/ 1-Methyl-pseudo-UTP/8- −1.25 −0.03 00901011045 Me-ATP 00901015002/ 1-Methyl-pseudo-UTP/2% 358.75 2.29 00902011001/ Alpha-Thio-ATP + 98% 00902012001 ATP/2% Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 282.5 6.92 00902011001/ Alpha-Thio-ATP + 95% 00902012001 ATP/5% Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 282.5 23.54 00902011001/ Alpha-Thio-ATP + 98% 00902012001 ATP/5% Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 213.75 4.24 00902011001/ Alpha-Thio-ATP + 95% 00902012001 ATP/2% Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 237.5 19.15 00902011001/ Alpha-Thio-ATP + 90% 00902012001 ATP/2% Alpha-Thio-GTP + 98% GTP 00901015002/ 1-Methyl-pseudo-UTP/2% 383.75 8.63 00902011001/ Alpha-Thio-ATP + 98% 00902012001 ATP/10% Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 340 3.00 00902011001/ Alpha-Thio-ATP + 90% 00902012001 ATP/5% Alpha-Thio-GTP + 95% GTP 00901015002/ 1-Methyl-pseudo-UTP/5% 437.5 21.38 00902011001/ Alpha-Thio-ATP + 95% 00902012001 ATP/10% Alpha-Thio-GTP + 90% GTP 00901015002/ 1-Methyl-pseudo-UTP/10% 401.25 5.58 00902011001/ Alpha-Thio-ATP + 90% 00902012001 ATP/10% Alpha-Thio-GTP + 90% GTP 00901014041 5-Fluoro-CTP 2808.46 102.10 00901014041/ 5-Fluoro-CTP/1-Methyl- 188.46 3.02 00901015002 pseudo-UTP 00901014041/ 5-Fluoro-CTP/5-Methoxy- 4.62 0.12 00901013007 UTP 03601014021 5-Phenyl-CTP 865.38 26.34 03601014021/ 5-Phenyl-CTP/1-Methyl- −20 −0.09 00901015002 pseudo-UTP 03601014021/ 5-Phenyl-CTP/5-Methoxy- −16.92 −0.36 00901013007 UTP 03601014013 N4-Bz-CTP −17.69 −0.46 03601014013/ N4-Bz-CTP/1-Methyl- −23.08 −0.10 00901015002 pseudo-UTP 03601014013/ N4-Bz-CTP/5-Methoxy- −17.69 −0.15 00901013007 UTP 03601013036 5-Carbamoyl-methyl-UTP 1445.38 98.89 03601013036 75% 5-Carbamoyl-methyl- 2341.54 121.37 UTP + 25% UTP 00901013054 50% 5-Carbamoyl-methyl- 3471.54 131.06 UTP + 50% UTP 00901013054 25% 5-Carbamoyl-methyl- 2246.92 106.12 UTP + 75% UTP 00901013054 75% 5-Hydroxy-UTP + 25% 3277.69 195.96 UTP 00901014007/ 50% 5-Hydroxy-UTP + 50% 3347.69 266.68 00901013007 UTP 00901014007/ 25% 5-Hydroxy-UTP + 75% 2800.77 122.21 00901013007 UTP 00901014007/ 25% N4-Ac-CTP + 75% 2245 66 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014007/ 75% N4-Ac-CTP + 25% 181 15 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014005/ 25% N4-Ac-CTP + 75% 1790 92 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014005/ 75% N4-Ac-CTP + 25% 21 1 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014005/ 25% 5-Hydroxymethyl-CTP + 1603.64 60.64 00901013007 75% CTP/25% 5- Methoxy-UTP + 75% UTP 00901014005/ 75% 5-Hydroxymethyl-CTP + 2502.73 245.56 00901013007 25% CTP/25% 5- Methoxy-UTP + 75% UTP 00901014004/ 25% 5-Hydroxymethyl-CTP + 440.00 37.53 00901013007 75% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014004/ 75% 5-Hydroxymethyl-CTP + 20.00 0.06 00901013007 25% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014004/ N4-Methyl-CTP/5- 2.73 0.12 00901013007 Methoxy-UTP 00901014004/ 25% N4-Methyl-CTP + 75% 1795.45 49.96 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 00901014004/ 75% N4-Methyl-CTP + 25% 2277.27 43.45 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 00901014003/ 25% N4-Methyl-CTP + 75% 610.00 28.17 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 00901014003/ 75% N4-Methyl-CTP + 25% 608.18 56.29 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 00901014003/ 25% 5-Trifluoromethyl-CTP + 2207.27 52.12 00901013007 75% CTP/25% 5- Methoxy-UTP + 75% UTP 00901014003/ 75% 5-Trifluoromethyl-CTP + 2226.36 67.42 00901013007 25% CTP/25% 5- Methoxy-UTP + 75% UTP 03601014008/ 25% 5-Trifluoromethyl-CTP + 1080.91 139.93 00901013007 75% CTP/75% 5- Methoxy-UTP + 25% UTP 03601014008/ 75% 5-Trifluoromethyl-CTP + 0 0 00901013007 25% CTP/75% 5- Methoxy-UTP + 25% UTP 03601014008/ 25% 5-Bromo-CTP + 75% 1823.75 165.4 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014008/ 75% 5-Bromo-CTP + 25% 0 0 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014035/ 25% 5-Bromo-CTP + 75% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014035/ 75% 5-Bromo-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014035/ 5-Iodo-CTP/5-Methoxy- 0 0 00901013007 UTP 00901014035/ 25% 5-Iodo-CTP + 75% 570 5.907 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014035/ 75% 5-Iodo-CTP + 25% 0 0 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014039/ 25% 5-Iodo-CTP + 75% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014039/ 75% 5-Iodo-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014039/ 25% 5-Ethyl-CTP + 75% 1877.5 20.65 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014039/ 75% 5-Ethyl-CTP + 25% 17.5 0.318 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014030/ 25% 5-Ethyl-CTP + 75% 82.5 0.864 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014030/ 75% 5-Ethyl-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014030/ 25% 5-Methoxy-CTP + 75% 2893.75 14.3 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 03601014030/ 75% 5-Methoxy-CTP + 25% 2.5 0 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 03601014012/ 25% 5-Methoxy-CTP + 75% 0 0 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 03601014012/ 75% 5-Methoxy-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 03601013036 25% 5-Ethynyl-CTP + 75% 884.17 6.55 CTP/25% 5-Methoxy- UTP + 75% UTP 03601013036 75% 5-Ethynyl-CTP + 25% 0 0 CTP/25% 5-Methoxy- UTP + 75% UTP 03601014012/ 25% 5-Ethynyl-CTP + 75% 0 0 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 03601014012/ 75% 5-Ethynyl-CTP + 25% 6.67 0.16 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 00901014014/ Pseudo-iso-CTP/5- 0 0 00901013007 Methoxy-UTP 00901014014/ 25% Pseudo-iso-CTP + 75% 2384.17 106 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% 978.33 59.52 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 00901014014/ 25% Pseudo-iso-CTP + 75% 127.5 1.15 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 00901014014/ 75% Pseudo-iso-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 00901014036/ 5-Formyl-CTP/5-Methoxy- 0 0 00901013007 UTP 00901014036/ 25% 5-Formyl-CTP + 75% 2692.5 188.2 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014036/ 75% 5-Formyl-CTP + 25% 440.83 60.36 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014036/ 25% 5-Formyl-CTP + 75% 30 1.57 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014036/ 75% 5-Formyl-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014009/ 5-Aminoallyl-CTP/5- 0 0 00901013007 Methoxy-UTP 03601014009/ 25% 5-Aminoallyl-CTP + 410.83 18.91 00901013007 75% CTP/25% 5- Methoxy-UTP + 75% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 0 0 00901013007 25% CTP/25% 5- Methoxy-UTP + 75% UTP 03601014009/ 25% 5-Aminoallyl-CTP + 6.67 0.11 00901013007 75% CTP/75% 5- Methoxy-UTP + 25% UTP 03601014009/ 75% 5-Aminoallyl-CTP + 0 0 00901013007 25% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% 2364.17 87.84 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% 1472.5 35.88 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 00901014041/ 25% 5-Fluoro-CTP + 75% 304.17 1.87 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 00901014041/ 75% 5-Fluoro-CTP + 25% 27.5 0.17 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% 1820 103.94 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% 200 4.95 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014021/ 25% 5-Phenyl-CTP + 75% 105 4.34 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014021/ 75% 5-Phenyl-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014013/ 25% N4-Bz-CTP + 75% 2194.17 135.35 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014013/ 75% N4-Bz-CTP + 25% 492.5 51.72 00901013007 CTP/25% 5-Methoxy-UTP + 75% UTP 03601014013/ 25% N4-Bz-CTP + 75% 324.17 25.01 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014013/ 75% N4-Bz-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy-UTP + 25% UTP 03601014041/ 5-Carboxy-CTP/5- 10 0.24 00901013007 Methoxy-UTP 03601014041/ 25% 5-Carboxy-CTP + 75% 2575.83 126.66 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% 839.17 32.48 00901013007 CTP/25% 5-Methoxy- UTP + 75% UTP 03601014041/ 25% 5-Carboxy-CTP + 75% 330 0.48 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP 03601014041/ 75% 5-Carboxy-CTP + 25% 0 0 00901013007 CTP/75% 5-Methoxy- UTP + 25% UTP

TABLE 36 Cytokine screen results in BJ Fibroblast cells. IFN-β IFN-β IFN-β (mEPO) IFN-β (hEPO) Compound # Chemical Alterations (mEPO) Std Dev (hEPO) Std Dev 00901013007 5-Methoxy-UTP −3.33 −0.03 15 0.15 00901014002/ 5-Me-CTP/5-Methoxy- −1.67 −0.03 5 0 00901013007 UTP 00901014002/ 5-Methyl-CTP/75% 5- 6.67 0.07 42.5 0.20 00901013007 Methoxy-UTP + 25% UTP 00901014002/ 5-Methyl-CTP/50% 5- 0.00 0.00 −7.5 −0.35 00901013007 Methoxy-UTP + 50% UTP 00901014002/ 5-Methyl-CTP/25% 5- 0.00 0.00 0 0 00901013007 Methoxy-UTP + 75% UTP 00901014002/ 75% 5-Methyl-CTP + −8.33 −0.13 −2.5 −0.01 00901013007 25% CTP/5-Methoxy- UTP 00901014002/ 50% 5-Methyl-CTP + −3.33 −0.03 −2.5 −0.01 00901013007 50% CTP/5-Methoxy- UTP 00901014002/ 25% 5-Methyl-CTP + 1.67 0.08 −10 −0.21 00901013007 75% CTP/5-Methoxy- UTP 00901014002/ 75% 5-Methyl-CTP + −10.00 −0.21 5 0 00901013007 25% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014002/ 50% 5-Methyl-CTP + −8.33 −0.04 30 0.58 00901013007 50% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014002/ 25% 5-Methyl-CTP + 30 0.56 10 0.4 00901013007 75% CTP/75% 5- Methoxy-UTP + 25% UTP 00901014002/ 75% 5-Methyl-CTP + 10 0.10 25 0 00901013007 25% CTP/50% 5- Methoxy-UTP + 50% UTP 00901014002/ 50% 5-Methyl-CTP + 6.67 0 2.5 0.01 00901013007 50% CTP/50% 5- Methoxy-UTP + 50% UTP 00901014002/ 25% 5-Methyl-CTP + −1.67 −0.03 10 0.1 00901013007 75% CTP/50% 5- Methoxy-UTP + 50% UTP 00901014002/ 75% 5-Methyl-CTP + 6.67 0.2 27.5 0.93 00901013007 25% CTP/25% 5- Methoxy-UTP + 75% UTP 00901014002/ 50% 5-Methyl-CTP + −11.67 −0.19 −7.5 −0.04 00901013007 50% CTP/25% 5- Methoxy-UTP + 75% UTP 00901014002/ 25% 5-Methyl-CTP + 450 17.38 12.5 0.06 00901013007 75% CTP/25% 5- Methoxy-UTP + 75% UTP 00901013007 CTP/75% 5-Methoxy- −1.67 −0.01 5 0.10 UTP + 25% UTP 00901013007 CTP/50% 5-Methoxy- 43.33 0.78 20 0.78 UTP + 50% UTP 00901013007 CTP/25% 5-Methoxy- 148.33 3.64 35 0.67 UTP + 75% UTP

Example 88. In Vivo Assays with Human EPO Containing Alternative Nucleotides Formulation

Alternative hEPO mRNAs were formulated in lipid nanoparticles (LNPs) comprising DLin-KC2-DMA, DSPC, Cholesterol, and PEG-DMG at 50:10:38.5:1.5 mol % respectively (Table 37). The LNPs were made by direct injection utilizing nanoprecipitation of ethanol solubilized lipids into a pH 4.0 50 mM citrate mRNA solution. The EPO LNP particle size distributions were characterized by DLS. Encapsulation efficiency (EE) was determined using a Ribogreen™ fluorescence-based assay for detection and quantification of nucleic acids. The sample details are shown in Table 38.

TABLE 37 Formulation Conditions Ionizable Lipid 2-(2,2-di((9Z,12Z)- PEG Lipid octadeca-9,12-dien- Phospholipid 1,2-Dimyristoyl- 1yl)-1,3-diocolan- 1,2-distearoyl- Cholesterol sn-glycerol, 4-yl)-N,N-dimethyl- sn-glycero-3- cholest- methoxypoly- ethanamine phosphocholine 5-en-3β-ol ethylene Glycol (Lipid/Mol %) (Lipid/Mol %) (Lipid/Mol %) (Lipid/Mol %) DLin-KC2-DMA DSPC Cholesterol PEG-DMG 50 10 38.5 1.5

TABLE 38 Sample Details Batch Z- Size average % (ug) Sample Name mRNA Chemistry (d · nm) PDI EE 100 hEPO 597 1 5-methoxy-UTP/CTP/ATP/ 84.44 0.131 97 GTP 100 hEPO 597 2 5-methoxy-UTP/5-methyl- 81.77 0.108 97 CTP/ATP/GTP 100 hEPO 597 3 75% 5-methoxy-UTP/5- 89.22 0.162 94 methyl-CTP/ATP/GTP 100 hEPO 597 4 50% 5-methoxy-UTP/5- 86.24 0.124 98 methyl-CTP/ATP/GTP 100 hEPO 597 5 25% 5-methoxy-UTP/5- 86.67 0.144 97 methyl-CTP/ATP/GTP 50 hEPO 597 6 5-methoxy-UTP/75% 5- 99.25 0.162 81 methyl-CTP/ATP/GTP 100 hEPO 597 7 5-methoxy-UTP/50% 5- 89.32 0.123 95 methyl-CTP/ATP/GTP 100 hEPO 597 8 5-methoxy-UTP/25% 5- 87.38 0.134 97 methyl-CTP/ATP/GTP 100 hEPO 597 9 75% 5-methoxy-UTP/75% 86.66 0.139 97 5-methyl-CTP/ATP/GTP 100 hEPO 597 10 75% 5-methoxy-UTP/50% 86.54 0.124 97 5-methyl-CTP/ATP/GTP 100 hEPO 597 11 75% 5-methoxy-UTP/25% 86.07 0.143 97 5-methyl-CTP/ATP/GTP 100 hEPO 597 12 50% 5-methoxy-UTP/75% 87.54 0.114 98 5-methyl-CTP/ATP/GTP 100 hEPO 597 13 50% 5-methoxy-UTP/50% 87.66 0.123 97 5-methyl-CTP/ATP/GTP 100 hEPO 597 14 50% 5-methoxy-UTP/25% 85.96 0.156 97 5-methyl-CTP/ATP/GTP 100 hEPO 597 15 25% 5-methoxy-UTP/75% 90.03 0.113 98 5-methyl-CTP/ATP/GTP 50 hEPO 597 16 25% 5-metoxy-UTP/50% 94.52 0.201 93 5-methyl-CTP/ATP/GTP 100 hEPO 597 17 25% 5-methoxy-UTP/25% 86.66 0.096 96 5-methyl-CTP/ATP/GTP 100 hEPO 597 18 75% 5-methoxy- 86.13 0.164 97 UTP/CTP/ATP/GTP 100 hEPO 597 19 50% 5-methoxy- 85.57 0.157 98 UTP/CTP/ATP/GTP 100 hEPO 597 20 25% 5-methoxy- 88.36 0.127 98 UTP/CTP/ATP/GTP 100 hEPO 597 21 UTP/CTP/ATP/GTP 87.39 0.126 98 50 hEPO 597 22 pseudo-UTP/5-methyl- 100.8 0.136 91 CTP/ATP/GTP 100 hEPO 597 23 1-methyl-pseudo-UTP/5- 87.13 0.141 98 methyl-CTP/ATP/GTP 100 hEPO 597 24 1-methyl-pseudo- 87.92 0.098 98 UTP/CTP/ATP/GTP

Methods and Data

Female Balb/c mice (n=5) were administered 0.05 mg/kg IM (50 ul in the quadriceps) or IV (100 ul in the tail vein) of human EPO mRNA. At time 8 hours after the injection mice were euthanized and blood was collected in serum separator tubes. The samples were spun and serum samples were then run on an EPO ELISA following the kit protocol (Stem Cell Technologies Catalog #01630). The results are shown in Table 39.

TABLE 39 Results of In vivo assay Sample Name hEPO IV (pg/ml) hEPO IM (pg/ml) hEPO 597 1 2205 1068 hEPO 597 2 9618 2045 hEPO 597 3 12583 2315 hEPO 597 4 11617 3537 hEPO 597 5 42259 6388 hEPO 597 6 3693 1591 hEPO 597 7 7226 1722 hEPO 597 8 3432 1258 hEPO 597 9 11736 1883 hEPO 597 10 6860 1832 hEPO 597 11 7779 2156 hEPO 597 12 11894 2791 hEPO 597 13 17942 2945 hEPO 597 15 19171 4860 hEPO 597 16 10842 2014 hEPO 597 17 20685 3534 hEPO 597 18 2389 777 hEPO 597 19 6808 1777 hEPO 597 20 9138 2369 hEPO 597 21 35819 3708 hEPO 597 22 1350 344 hEPO 597 23 27438 3183 hEPO 597 24 43755 3826

OTHER EMBODIMENTS

It is to be understood that while the present disclosure has been described in conjunction with the detailed description thereof, the foregoing description is intended to illustrate and not limit the scope of the present disclosure, which is defined by the scope of the appended claims. Other aspects, advantages, and modifications are within the scope of the following claims. 

1-159. (canceled)
 160. An mRNA comprising: (i) a 5′ cap structure; (ii) a 5′-untranslated region (UTR); (iii) an open reading frame encoding a polypeptide; and (iv) a 3′-UTR, wherein alpha-thio-adenosine and/or alpha-thio-guanosine represent about 2%-100% of the adenosines and/or guanosines in the mRNA.
 161. The mRNA of claim 160, wherein alpha-thio-adenosine and/or alpha-thio-guanosine represent about 2%-10% of the adenosines and/or guanosines in the mRNA.
 162. The mRNA of claim 161, wherein alpha-thio-adenosine and/or alpha-thio-guanosine represent about 2% of the adenosines and/or guanosines in the mRNA.
 163. The mRNA of claim 160, wherein alpha-thio-adenosine represents about 2%-10% of the adenosines in the mRNA.
 164. The mRNA of claim 160, wherein alpha-thio-guanosine represents about 2%-10% of the guanosines in the mRNA.
 165. The mRNA of claim 160, wherein the 5′ cap structure is Cap0, Cap1, ARCA, inosine, N1-methyl-guanosine, 2′-fluoro-guanosine, 7-deaza-guanosine, 8-oxo-guanosine, 2-amino-guanosine, LNA-guanosine, or 2-azido-guanosine.
 166. The mRNA of claim 160, wherein the mRNA further comprises a poly-A tail.
 167. The mRNA of claim 160, wherein the mRNA is codon optimized.
 168. The mRNA of claim 167, wherein the mRNA is codon optimized to minimize base runs that impair gene expression.
 169. The mRNA of claim 160, wherein the open reading frame consists of nucleosides selected from 1-methyl-pseudouridine, cytidine, adenosine or alpha-thio-adenosine, and guanosine or alpha-thio-guanosine.
 170. A pharmaceutical composition comprising the mRNA of claim 160 and a pharmaceutically acceptable excipient.
 171. A method of expressing a polypeptide of interest in a mammalian cell, said method comprising the steps of: (i) providing an mRNA of claim 160; and (ii) introducing said mRNA to a mammalian cell under conditions that permit the expression of the polypeptide of interest by the mammalian cell.
 172. The method of claim 171, wherein the innate immune response associated with the mRNA is reduced relative to the innate immune response induced by a corresponding mRNA that does not comprise alpha-thio-adenosine and/or alpha-thio-guanosine.
 173. The method of claim 169, wherein the expression of the polypeptide by the mRNA is increased relative to the expression of a corresponding mRNA that does not comprise alpha-thio-adenosine and/or alpha-thio-guanosine. 